[PATCH 5/5] hw/ppc: Pass errp to load_image_targphys() and report errors

Vishal Chourasia posted 5 patches 4 weeks ago
Maintainers: Richard Henderson <richard.henderson@linaro.org>, Peter Maydell <peter.maydell@linaro.org>, Antony Pavlov <antonynpavlov@gmail.com>, Rob Herring <robh@kernel.org>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Alistair Francis <alistair@alistair23.me>, "Alex Bennée" <alex.bennee@linaro.org>, Helge Deller <deller@gmx.de>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, Corey Minyard <minyard@acm.org>, Song Gao <gaosong@loongson.cn>, Bibo Mao <maobibo@loongson.cn>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Thomas Huth <huth@tuxfamily.org>, Laurent Vivier <laurent@vivier.eu>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Paul Burton <paulburton@kernel.org>, Aleksandar Rikalo <arikalo@gmail.com>, Huacai Chen <chenhuacai@kernel.org>, "Hervé Poussineau" <hpoussin@reactos.org>, Aurelien Jarno <aurelien@aurel32.net>, Stafford Horne <shorne@gmail.com>, BALATON Zoltan <balaton@eik.bme.hu>, Bernhard Beschow <shentey@gmail.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Nicholas Piggin <npiggin@gmail.com>, Aditya Gupta <adityag@linux.ibm.com>, Glenn Miles <milesg@linux.ibm.com>, Harsh Prateek Bora <harshpb@linux.ibm.com>, Palmer Dabbelt <palmer@dabbelt.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Yoshinori Sato <yoshinori.sato@nifty.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Jared Rossi <jrossi@linux.ibm.com>, Zhuoying Cai <zycai@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, Matthew Rosato <mjrosato@linux.ibm.com>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Magnus Damm <magnus.damm@gmail.com>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, "Clément Chigot" <chigot@adacore.com>, Frederic Konrad <konrad.frederic@yahoo.fr>, Artyom Tarasenko <atar4qemu@gmail.com>, Max Filippov <jcmvbkbc@gmail.com>, David Gibson <david@gibson.dropbear.id.au>
[PATCH 5/5] hw/ppc: Pass errp to load_image_targphys() and report errors
Posted by Vishal Chourasia 4 weeks ago
Pass errp to load_image_targphys() calls in ppc machine initialization
to capture detailed error information when loading firmware, kernel,
and initrd images.

Use error_reportf_err() instead of error_report() to print the
underlying error details along with context about which image failed
to load.

Signed-off-by: Vishal Chourasia <vishalc@linux.ibm.com>
---
 hw/ppc/amigaone.c      | 11 ++++++-----
 hw/ppc/e500.c          | 13 +++++++------
 hw/ppc/mac_newworld.c  | 17 +++++++++--------
 hw/ppc/mac_oldworld.c  | 17 +++++++++--------
 hw/ppc/pegasos2.c      | 11 ++++++-----
 hw/ppc/pnv.c           | 18 ++++++++++--------
 hw/ppc/ppc440_bamboo.c |  7 ++++---
 hw/ppc/prep.c          | 17 +++++++++--------
 hw/ppc/sam460ex.c      |  7 ++++---
 hw/ppc/spapr.c         | 11 ++++++-----
 hw/ppc/virtex_ml507.c  |  9 +++++----
 11 files changed, 75 insertions(+), 63 deletions(-)

diff --git a/hw/ppc/amigaone.c b/hw/ppc/amigaone.c
index 5c5acc9872..33a4066fa0 100644
--- a/hw/ppc/amigaone.c
+++ b/hw/ppc/amigaone.c
@@ -276,6 +276,7 @@ static void amigaone_init(MachineState *machine)
     DriveInfo *di;
     hwaddr loadaddr;
     struct boot_info *bi = NULL;
+    Error *errp = NULL;
 
     /* init CPU */
     cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
@@ -324,9 +325,9 @@ static void amigaone_init(MachineState *machine)
             error_report("Could not find firmware '%s'", machine->firmware);
             exit(1);
         }
-        sz = load_image_targphys(filename, PROM_ADDR, PROM_SIZE, NULL);
+        sz = load_image_targphys(filename, PROM_ADDR, PROM_SIZE, &errp);
         if (sz <= 0 || sz > PROM_SIZE) {
-            error_report("Could not load firmware '%s'", filename);
+            error_reportf_err(errp, "Could not load firmware '%s': ", filename);
             exit(1);
         }
     }
@@ -413,10 +414,10 @@ static void amigaone_init(MachineState *machine)
         loadaddr = ROUND_UP(loadaddr + 4 * MiB, 4 * KiB);
         loadaddr = MAX(loadaddr, INITRD_MIN_ADDR);
         sz = load_image_targphys(machine->initrd_filename, loadaddr,
-                                 bi->bd_info - loadaddr, NULL);
+                                 bi->bd_info - loadaddr, &errp);
         if (sz <= 0) {
-            error_report("Could not load initrd '%s'",
-                         machine->initrd_filename);
+            error_reportf_err(errp, "Could not load initrd '%s': ",
+                              machine->initrd_filename);
             exit(1);
         }
         bi->initrd_start = loadaddr;
diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index 30937a4a92..009d80da39 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -932,6 +932,7 @@ void ppce500_init(MachineState *machine)
     MemoryRegion *ccsr_addr_space;
     SysBusDevice *s;
     I2CBus *i2c;
+    Error *errp = NULL;
 
     irqs = g_new0(IrqLines, smp_cpus);
     for (i = 0; i < smp_cpus; i++) {
@@ -1227,10 +1228,10 @@ void ppce500_init(MachineState *machine)
         kernel_base = cur_base;
         kernel_size = load_image_targphys(machine->kernel_filename,
                                           cur_base,
-                                          machine->ram_size - cur_base, NULL);
+                                          machine->ram_size - cur_base, &errp);
         if (kernel_size < 0) {
-            error_report("could not load kernel '%s'",
-                         machine->kernel_filename);
+            error_reportf_err(errp, "could not load kernel '%s': ",
+                              machine->kernel_filename);
             exit(1);
         }
 
@@ -1242,11 +1243,11 @@ void ppce500_init(MachineState *machine)
         initrd_base = (cur_base + INITRD_LOAD_PAD) & ~INITRD_PAD_MASK;
         initrd_size = load_image_targphys(machine->initrd_filename, initrd_base,
                                           machine->ram_size - initrd_base,
-                                          NULL);
+                                          &errp);
 
         if (initrd_size < 0) {
-            error_report("could not load initial ram disk '%s'",
-                         machine->initrd_filename);
+            error_reportf_err(errp, "could not load initial ram disk '%s': ",
+                              machine->initrd_filename);
             exit(1);
         }
 
diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
index 728525759c..d26cbcb0df 100644
--- a/hw/ppc/mac_newworld.c
+++ b/hw/ppc/mac_newworld.c
@@ -156,6 +156,7 @@ static void ppc_core99_init(MachineState *machine)
     DeviceState *uninorth_internal_dev = NULL, *uninorth_agp_dev = NULL;
     hwaddr nvram_addr = 0xFFF04000;
     uint64_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TBFREQ;
+    Error *errp = NULL;
 
     /* init CPUs */
     for (i = 0; i < machine->smp.cpus; i++) {
@@ -189,12 +190,12 @@ static void ppc_core99_init(MachineState *machine)
         if (bios_size <= 0) {
             /* or load binary ROM image */
             bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE,
-                    NULL);
+                                            &errp);
         }
         g_free(filename);
     }
     if (bios_size < 0 || bios_size > PROM_SIZE) {
-        error_report("could not load PowerPC bios '%s'", bios_name);
+        error_reportf_err(errp, "could not load PowerPC bios '%s': ", bios_name);
         exit(1);
     }
 
@@ -212,11 +213,11 @@ static void ppc_core99_init(MachineState *machine)
             kernel_size = load_image_targphys(machine->kernel_filename,
                                               kernel_base,
                                               machine->ram_size - kernel_base,
-                                              NULL);
+                                              &errp);
         }
         if (kernel_size < 0) {
-            error_report("could not load kernel '%s'",
-                         machine->kernel_filename);
+            error_reportf_err(errp, "could not load kernel '%s': ",
+                              machine->kernel_filename);
             exit(1);
         }
         /* load initrd */
@@ -225,10 +226,10 @@ static void ppc_core99_init(MachineState *machine)
             initrd_size = load_image_targphys(machine->initrd_filename,
                                               initrd_base,
                                               machine->ram_size - initrd_base,
-                                              NULL);
+                                              &errp);
             if (initrd_size < 0) {
-                error_report("could not load initial ram disk '%s'",
-                             machine->initrd_filename);
+                error_reportf_err(errp, "could not load initial ram disk '%s': ",
+                                  machine->initrd_filename);
                 exit(1);
             }
             cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
index a067a191cd..4dbe74bfd2 100644
--- a/hw/ppc/mac_oldworld.c
+++ b/hw/ppc/mac_oldworld.c
@@ -108,6 +108,7 @@ static void ppc_heathrow_init(MachineState *machine)
     DriveInfo *dinfo, *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
     void *fw_cfg;
     uint64_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TBFREQ;
+    Error *errp = NULL;
 
     /* init CPUs */
     for (i = 0; i < machine->smp.cpus; i++) {
@@ -144,13 +145,13 @@ static void ppc_heathrow_init(MachineState *machine)
         if (bios_size <= 0) {
             /* or if could not load ELF try loading a binary ROM image */
             bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE,
-                    NULL);
+                                            &errp);
             bios_addr = PROM_BASE;
         }
         g_free(filename);
     }
     if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) {
-        error_report("could not load PowerPC bios '%s'", bios_name);
+        error_reportf_err(errp, "could not load PowerPC bios '%s': ", bios_name);
         exit(1);
     }
 
@@ -168,11 +169,11 @@ static void ppc_heathrow_init(MachineState *machine)
             kernel_size = load_image_targphys(machine->kernel_filename,
                                               kernel_base,
                                               machine->ram_size - kernel_base,
-                                              NULL);
+                                              &errp);
         }
         if (kernel_size < 0) {
-            error_report("could not load kernel '%s'",
-                         machine->kernel_filename);
+            error_reportf_err(errp, "could not load kernel '%s': ",
+                              machine->kernel_filename);
             exit(1);
         }
         /* load initrd */
@@ -182,10 +183,10 @@ static void ppc_heathrow_init(MachineState *machine)
             initrd_size = load_image_targphys(machine->initrd_filename,
                                               initrd_base,
                                               machine->ram_size - initrd_base,
-                                              NULL);
+                                              &errp);
             if (initrd_size < 0) {
-                error_report("could not load initial ram disk '%s'",
-                             machine->initrd_filename);
+                error_reportf_err(errp, "could not load initial ram disk '%s': ",
+                                  machine->initrd_filename);
                 exit(1);
             }
             cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
diff --git a/hw/ppc/pegasos2.c b/hw/ppc/pegasos2.c
index 7fa14fd0e6..d4703f79da 100644
--- a/hw/ppc/pegasos2.c
+++ b/hw/ppc/pegasos2.c
@@ -129,6 +129,7 @@ static void pegasos2_init(MachineState *machine)
     int i;
     ssize_t sz;
     uint8_t *spd_data;
+    Error *errp = NULL;
 
     /* init CPU */
     pm->cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
@@ -164,10 +165,10 @@ static void pegasos2_init(MachineState *machine)
                   ELFDATA2MSB, PPC_ELF_MACHINE, 0, 0);
     if (sz <= 0) {
         sz = load_image_targphys(filename, pm->vof ? 0 : PROM_ADDR, PROM_SIZE,
-                NULL);
+                                 &errp);
     }
     if (sz <= 0 || sz > PROM_SIZE) {
-        error_report("Could not load firmware '%s'", filename);
+        error_reportf_err(errp, "Could not load firmware '%s': ", filename);
         exit(1);
     }
     g_free(filename);
@@ -260,10 +261,10 @@ static void pegasos2_init(MachineState *machine)
         pm->initrd_addr = ROUND_UP(pm->initrd_addr, 4);
         pm->initrd_addr = MAX(pm->initrd_addr, INITRD_MIN_ADDR);
         sz = load_image_targphys(machine->initrd_filename, pm->initrd_addr,
-                                 machine->ram_size - pm->initrd_addr, NULL);
+                                 machine->ram_size - pm->initrd_addr, &errp);
         if (sz <= 0) {
-            error_report("Could not load initrd '%s'",
-                         machine->initrd_filename);
+            error_reportf_err(errp, "Could not load initrd '%s': ",
+                              machine->initrd_filename);
             exit(1);
         }
         pm->initrd_size = sz;
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index a3e5203970..88668a700e 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1015,6 +1015,7 @@ static void pnv_init(MachineState *machine)
     char *chip_typename;
     DriveInfo *pnor;
     DeviceState *dev;
+    Error *errp = NULL;
 
     if (kvm_enabled()) {
         error_report("machine %s does not support the KVM accelerator",
@@ -1069,9 +1070,10 @@ static void pnv_init(MachineState *machine)
     }
 
     fw_size = load_image_targphys(fw_filename, pnv->fw_load_addr, FW_MAX_SIZE,
-                                    NULL);
+                                    &errp);
     if (fw_size < 0) {
-        error_report("Could not load OPAL firmware '%s'", fw_filename);
+        error_reportf_err(errp, "Could not load OPAL firmware '%s': ",
+                          fw_filename);
         exit(1);
     }
     g_free(fw_filename);
@@ -1082,10 +1084,10 @@ static void pnv_init(MachineState *machine)
 
         kernel_size = load_image_targphys(machine->kernel_filename,
                                           KERNEL_LOAD_ADDR, KERNEL_MAX_SIZE,
-                                          NULL);
+                                          &errp);
         if (kernel_size < 0) {
-            error_report("Could not load kernel '%s'",
-                         machine->kernel_filename);
+            error_reportf_err(errp, "Could not load kernel '%s': ",
+                              machine->kernel_filename);
             exit(1);
         }
     }
@@ -1094,10 +1096,10 @@ static void pnv_init(MachineState *machine)
     if (machine->initrd_filename) {
         pnv->initrd_base = INITRD_LOAD_ADDR;
         pnv->initrd_size = load_image_targphys(machine->initrd_filename,
-                                  pnv->initrd_base, INITRD_MAX_SIZE, NULL);
+                                  pnv->initrd_base, INITRD_MAX_SIZE, &errp);
         if (pnv->initrd_size < 0) {
-            error_report("Could not load initial ram disk '%s'",
-                         machine->initrd_filename);
+            error_reportf_err(errp, "Could not load initial ram disk '%s': ",
+                              machine->initrd_filename);
             exit(1);
         }
     }
diff --git a/hw/ppc/ppc440_bamboo.c b/hw/ppc/ppc440_bamboo.c
index 7c66912c10..9e55e56ee0 100644
--- a/hw/ppc/ppc440_bamboo.c
+++ b/hw/ppc/ppc440_bamboo.c
@@ -141,6 +141,7 @@ static void bamboo_init(MachineState *machine)
     DeviceState *uicdev;
     SysBusDevice *uicsbd;
     int success;
+    Error *errp = NULL;
 
     if (kvm_enabled()) {
         error_report("machine %s does not support the KVM accelerator",
@@ -243,11 +244,11 @@ static void bamboo_init(MachineState *machine)
     if (initrd_filename) {
         initrd_size = load_image_targphys(initrd_filename, RAMDISK_ADDR,
                                           machine->ram_size - RAMDISK_ADDR,
-                                          NULL);
+                                          &errp);
 
         if (initrd_size < 0) {
-            error_report("could not load ram disk '%s' at %x",
-                         initrd_filename, RAMDISK_ADDR);
+            error_reportf_err(errp, "could not load ram disk '%s' at %x: ",
+                              initrd_filename, RAMDISK_ADDR);
             exit(1);
         }
     }
diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c
index edd3da7102..f8cf6dc16e 100644
--- a/hw/ppc/prep.c
+++ b/hw/ppc/prep.c
@@ -250,6 +250,7 @@ static void ibm_40p_init(MachineState *machine)
     uint32_t kernel_base = 0, initrd_base = 0;
     long kernel_size = 0, initrd_size = 0;
     char boot_device;
+    Error *errp = NULL;
 
     if (kvm_enabled()) {
         error_report("machine %s does not support the KVM accelerator",
@@ -280,10 +281,10 @@ static void ibm_40p_init(MachineState *machine)
     bios_size = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                          ELFDATA2MSB, PPC_ELF_MACHINE, 0, 0);
     if (bios_size < 0) {
-        bios_size = load_image_targphys(filename, BIOS_ADDR, BIOS_SIZE, NULL);
+        bios_size = load_image_targphys(filename, BIOS_ADDR, BIOS_SIZE, &errp);
     }
     if (bios_size < 0 || bios_size > BIOS_SIZE) {
-        error_report("Could not load bios image '%s'", filename);
+        error_reportf_err(errp, "Could not load bios image '%s': ", filename);
         return;
     }
     g_free(filename);
@@ -381,10 +382,10 @@ static void ibm_40p_init(MachineState *machine)
         kernel_size = load_image_targphys(machine->kernel_filename,
                                           kernel_base,
                                           machine->ram_size - kernel_base,
-                                          NULL);
+                                          &errp);
         if (kernel_size < 0) {
-            error_report("could not load kernel '%s'",
-                         machine->kernel_filename);
+            error_reportf_err(errp, "could not load kernel '%s': ",
+                              machine->kernel_filename);
             exit(1);
         }
         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
@@ -395,10 +396,10 @@ static void ibm_40p_init(MachineState *machine)
             initrd_size = load_image_targphys(machine->initrd_filename,
                                               initrd_base,
                                               machine->ram_size - initrd_base,
-                                              NULL);
+                                              &errp);
             if (initrd_size < 0) {
-                error_report("could not load initial ram disk '%s'",
-                             machine->initrd_filename);
+                error_reportf_err(errp, "could not load initial ram disk '%s': ",
+                                  machine->initrd_filename);
                 exit(1);
             }
             fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
index 68d3eacbff..a5cb8e0738 100644
--- a/hw/ppc/sam460ex.c
+++ b/hw/ppc/sam460ex.c
@@ -262,6 +262,7 @@ static void sam460ex_init(MachineState *machine)
     struct boot_info *boot_info;
     uint8_t *spd_data;
     int success;
+    Error *errp = NULL;
 
     cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
     env = &cpu->env;
@@ -495,10 +496,10 @@ static void sam460ex_init(MachineState *machine)
         initrd_size = load_image_targphys(machine->initrd_filename,
                                           RAMDISK_ADDR,
                                           machine->ram_size - RAMDISK_ADDR,
-                                          NULL);
+                                          &errp);
         if (initrd_size < 0) {
-            error_report("could not load ram disk '%s' at %x",
-                    machine->initrd_filename, RAMDISK_ADDR);
+            error_reportf_err(errp, "could not load ram disk '%s' at %x: ",
+                              machine->initrd_filename, RAMDISK_ADDR);
             exit(1);
         }
     }
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 9e17b5a31d..0be542c888 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -2824,9 +2824,10 @@ static void spapr_machine_init(MachineState *machine)
         error_report("Could not find LPAR firmware '%s'", bios_name);
         exit(1);
     }
-    fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE, NULL);
+    fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE, &errp);
     if (fw_size <= 0) {
-        error_report("Could not load LPAR firmware '%s'", filename);
+        error_reportf_err(errp, "Could not load LPAR firmware '%s': ",
+                          filename);
         exit(1);
     }
 
@@ -3090,10 +3091,10 @@ static void spapr_machine_init(MachineState *machine)
                                                      spapr->initrd_base,
                                                      load_limit
                                                      - spapr->initrd_base,
-                                                     NULL);
+                                                     &errp);
             if (spapr->initrd_size < 0) {
-                error_report("could not load initial ram disk '%s'",
-                             initrd_filename);
+                error_reportf_err(errp, "could not load initial ram disk '%s': ",
+                                  initrd_filename);
                 exit(1);
             }
         }
diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
index 00d9ab7509..a7d3de62fa 100644
--- a/hw/ppc/virtex_ml507.c
+++ b/hw/ppc/virtex_ml507.c
@@ -195,6 +195,7 @@ static void virtex_init(MachineState *machine)
     qemu_irq irq[32], cpu_irq;
     int kernel_size;
     int i;
+    Error *errp = NULL;
 
     /* init CPUs */
     cpu = ppc440_init_xilinx(machine->cpu_type, 400000000);
@@ -253,7 +254,7 @@ static void virtex_init(MachineState *machine)
             /* If we failed loading ELF's try a raw image.  */
             kernel_size = load_image_targphys(kernel_filename,
                                               boot_offset,
-                                              machine->ram_size, NULL);
+                                              machine->ram_size, &errp);
             boot_info.bootstrap_pc = boot_offset;
             high = boot_info.bootstrap_pc + kernel_size + 8192;
         }
@@ -265,11 +266,11 @@ static void virtex_init(MachineState *machine)
             initrd_base = high = ROUND_UP(high, 4);
             initrd_size = load_image_targphys(machine->initrd_filename,
                                               high, machine->ram_size - high,
-                                              NULL);
+                                              &errp);
 
             if (initrd_size < 0) {
-                error_report("couldn't load ram disk '%s'",
-                             machine->initrd_filename);
+                error_reportf_err(errp, "couldn't load ram disk '%s': ",
+                                  machine->initrd_filename);
                 exit(1);
             }
             high = ROUND_UP(high + initrd_size, 4);
-- 
2.51.0
Re: [PATCH 5/5] hw/ppc: Pass errp to load_image_targphys() and report errors
Posted by Aditya Gupta 4 weeks ago
On 16/10/25 23:05, Vishal Chourasia wrote:

> Pass errp to load_image_targphys() calls in ppc machine initialization
> to capture detailed error information when loading firmware, kernel,
> and initrd images.
>
> Use error_reportf_err() instead of error_report() to print the
> underlying error details along with context about which image failed
> to load.
>
> Signed-off-by: Vishal Chourasia <vishalc@linux.ibm.com>

Reviewed-by: Aditya Gupta <adityag@linux.ibm.com>


Regards,

- Aditya G
Re: [PATCH 5/5] hw/ppc: Pass errp to load_image_targphys() and report errors
Posted by BALATON Zoltan 4 weeks ago
On Thu, 16 Oct 2025, Vishal Chourasia wrote:
> Pass errp to load_image_targphys() calls in ppc machine initialization
> to capture detailed error information when loading firmware, kernel,
> and initrd images.
>
> Use error_reportf_err() instead of error_report() to print the
> underlying error details along with context about which image failed
> to load.
>
> Signed-off-by: Vishal Chourasia <vishalc@linux.ibm.com>
> ---
> hw/ppc/amigaone.c      | 11 ++++++-----
> hw/ppc/e500.c          | 13 +++++++------
> hw/ppc/mac_newworld.c  | 17 +++++++++--------
> hw/ppc/mac_oldworld.c  | 17 +++++++++--------
> hw/ppc/pegasos2.c      | 11 ++++++-----
> hw/ppc/pnv.c           | 18 ++++++++++--------
> hw/ppc/ppc440_bamboo.c |  7 ++++---
> hw/ppc/prep.c          | 17 +++++++++--------
> hw/ppc/sam460ex.c      |  7 ++++---
> hw/ppc/spapr.c         | 11 ++++++-----
> hw/ppc/virtex_ml507.c  |  9 +++++----
> 11 files changed, 75 insertions(+), 63 deletions(-)
>
> diff --git a/hw/ppc/amigaone.c b/hw/ppc/amigaone.c
> index 5c5acc9872..33a4066fa0 100644
> --- a/hw/ppc/amigaone.c
> +++ b/hw/ppc/amigaone.c
> @@ -276,6 +276,7 @@ static void amigaone_init(MachineState *machine)
>     DriveInfo *di;
>     hwaddr loadaddr;
>     struct boot_info *bi = NULL;
> +    Error *errp = NULL;
>
>     /* init CPU */
>     cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
> @@ -324,9 +325,9 @@ static void amigaone_init(MachineState *machine)
>             error_report("Could not find firmware '%s'", machine->firmware);
>             exit(1);
>         }
> -        sz = load_image_targphys(filename, PROM_ADDR, PROM_SIZE, NULL);
> +        sz = load_image_targphys(filename, PROM_ADDR, PROM_SIZE, &errp);
>         if (sz <= 0 || sz > PROM_SIZE) {
> -            error_report("Could not load firmware '%s'", filename);
> +            error_reportf_err(errp, "Could not load firmware '%s': ", filename);
>             exit(1);
>         }
>     }
> @@ -413,10 +414,10 @@ static void amigaone_init(MachineState *machine)
>         loadaddr = ROUND_UP(loadaddr + 4 * MiB, 4 * KiB);
>         loadaddr = MAX(loadaddr, INITRD_MIN_ADDR);
>         sz = load_image_targphys(machine->initrd_filename, loadaddr,
> -                                 bi->bd_info - loadaddr, NULL);
> +                                 bi->bd_info - loadaddr, &errp);
>         if (sz <= 0) {
> -            error_report("Could not load initrd '%s'",
> -                         machine->initrd_filename);
> +            error_reportf_err(errp, "Could not load initrd '%s': ",
> +                              machine->initrd_filename);
>             exit(1);
>         }
>         bi->initrd_start = loadaddr;
> diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
> index 30937a4a92..009d80da39 100644
> --- a/hw/ppc/e500.c
> +++ b/hw/ppc/e500.c
> @@ -932,6 +932,7 @@ void ppce500_init(MachineState *machine)
>     MemoryRegion *ccsr_addr_space;
>     SysBusDevice *s;
>     I2CBus *i2c;
> +    Error *errp = NULL;
>
>     irqs = g_new0(IrqLines, smp_cpus);
>     for (i = 0; i < smp_cpus; i++) {
> @@ -1227,10 +1228,10 @@ void ppce500_init(MachineState *machine)
>         kernel_base = cur_base;
>         kernel_size = load_image_targphys(machine->kernel_filename,
>                                           cur_base,
> -                                          machine->ram_size - cur_base, NULL);
> +                                          machine->ram_size - cur_base, &errp);
>         if (kernel_size < 0) {
> -            error_report("could not load kernel '%s'",
> -                         machine->kernel_filename);
> +            error_reportf_err(errp, "could not load kernel '%s': ",
> +                              machine->kernel_filename);
>             exit(1);
>         }
>
> @@ -1242,11 +1243,11 @@ void ppce500_init(MachineState *machine)
>         initrd_base = (cur_base + INITRD_LOAD_PAD) & ~INITRD_PAD_MASK;
>         initrd_size = load_image_targphys(machine->initrd_filename, initrd_base,
>                                           machine->ram_size - initrd_base,
> -                                          NULL);
> +                                          &errp);
>
>         if (initrd_size < 0) {
> -            error_report("could not load initial ram disk '%s'",
> -                         machine->initrd_filename);
> +            error_reportf_err(errp, "could not load initial ram disk '%s': ",
> +                              machine->initrd_filename);
>             exit(1);
>         }
>
> diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
> index 728525759c..d26cbcb0df 100644
> --- a/hw/ppc/mac_newworld.c
> +++ b/hw/ppc/mac_newworld.c
> @@ -156,6 +156,7 @@ static void ppc_core99_init(MachineState *machine)
>     DeviceState *uninorth_internal_dev = NULL, *uninorth_agp_dev = NULL;
>     hwaddr nvram_addr = 0xFFF04000;
>     uint64_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TBFREQ;
> +    Error *errp = NULL;
>
>     /* init CPUs */
>     for (i = 0; i < machine->smp.cpus; i++) {
> @@ -189,12 +190,12 @@ static void ppc_core99_init(MachineState *machine)
>         if (bios_size <= 0) {
>             /* or load binary ROM image */
>             bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE,
> -                    NULL);
> +                                            &errp);
>         }
>         g_free(filename);
>     }
>     if (bios_size < 0 || bios_size > PROM_SIZE) {
> -        error_report("could not load PowerPC bios '%s'", bios_name);
> +        error_reportf_err(errp, "could not load PowerPC bios '%s': ", bios_name);
>         exit(1);
>     }
>
> @@ -212,11 +213,11 @@ static void ppc_core99_init(MachineState *machine)
>             kernel_size = load_image_targphys(machine->kernel_filename,
>                                               kernel_base,
>                                               machine->ram_size - kernel_base,
> -                                              NULL);
> +                                              &errp);
>         }
>         if (kernel_size < 0) {
> -            error_report("could not load kernel '%s'",
> -                         machine->kernel_filename);
> +            error_reportf_err(errp, "could not load kernel '%s': ",
> +                              machine->kernel_filename);
>             exit(1);
>         }
>         /* load initrd */
> @@ -225,10 +226,10 @@ static void ppc_core99_init(MachineState *machine)
>             initrd_size = load_image_targphys(machine->initrd_filename,
>                                               initrd_base,
>                                               machine->ram_size - initrd_base,
> -                                              NULL);
> +                                              &errp);
>             if (initrd_size < 0) {
> -                error_report("could not load initial ram disk '%s'",
> -                             machine->initrd_filename);
> +                error_reportf_err(errp, "could not load initial ram disk '%s': ",
> +                                  machine->initrd_filename);
>                 exit(1);
>             }
>             cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
> diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
> index a067a191cd..4dbe74bfd2 100644
> --- a/hw/ppc/mac_oldworld.c
> +++ b/hw/ppc/mac_oldworld.c
> @@ -108,6 +108,7 @@ static void ppc_heathrow_init(MachineState *machine)
>     DriveInfo *dinfo, *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
>     void *fw_cfg;
>     uint64_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TBFREQ;
> +    Error *errp = NULL;
>
>     /* init CPUs */
>     for (i = 0; i < machine->smp.cpus; i++) {
> @@ -144,13 +145,13 @@ static void ppc_heathrow_init(MachineState *machine)
>         if (bios_size <= 0) {
>             /* or if could not load ELF try loading a binary ROM image */
>             bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE,
> -                    NULL);
> +                                            &errp);
>             bios_addr = PROM_BASE;
>         }
>         g_free(filename);
>     }
>     if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) {
> -        error_report("could not load PowerPC bios '%s'", bios_name);
> +        error_reportf_err(errp, "could not load PowerPC bios '%s': ", bios_name);
>         exit(1);
>     }
>
> @@ -168,11 +169,11 @@ static void ppc_heathrow_init(MachineState *machine)
>             kernel_size = load_image_targphys(machine->kernel_filename,
>                                               kernel_base,
>                                               machine->ram_size - kernel_base,
> -                                              NULL);
> +                                              &errp);
>         }
>         if (kernel_size < 0) {
> -            error_report("could not load kernel '%s'",
> -                         machine->kernel_filename);
> +            error_reportf_err(errp, "could not load kernel '%s': ",
> +                              machine->kernel_filename);
>             exit(1);
>         }
>         /* load initrd */
> @@ -182,10 +183,10 @@ static void ppc_heathrow_init(MachineState *machine)
>             initrd_size = load_image_targphys(machine->initrd_filename,
>                                               initrd_base,
>                                               machine->ram_size - initrd_base,
> -                                              NULL);
> +                                              &errp);
>             if (initrd_size < 0) {
> -                error_report("could not load initial ram disk '%s'",
> -                             machine->initrd_filename);
> +                error_reportf_err(errp, "could not load initial ram disk '%s': ",
> +                                  machine->initrd_filename);
>                 exit(1);
>             }
>             cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
> diff --git a/hw/ppc/pegasos2.c b/hw/ppc/pegasos2.c
> index 7fa14fd0e6..d4703f79da 100644
> --- a/hw/ppc/pegasos2.c
> +++ b/hw/ppc/pegasos2.c
> @@ -129,6 +129,7 @@ static void pegasos2_init(MachineState *machine)
>     int i;
>     ssize_t sz;
>     uint8_t *spd_data;
> +    Error *errp = NULL;
>
>     /* init CPU */
>     pm->cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
> @@ -164,10 +165,10 @@ static void pegasos2_init(MachineState *machine)
>                   ELFDATA2MSB, PPC_ELF_MACHINE, 0, 0);
>     if (sz <= 0) {
>         sz = load_image_targphys(filename, pm->vof ? 0 : PROM_ADDR, PROM_SIZE,
> -                NULL);
> +                                 &errp);
>     }
>     if (sz <= 0 || sz > PROM_SIZE) {
> -        error_report("Could not load firmware '%s'", filename);
> +        error_reportf_err(errp, "Could not load firmware '%s': ", filename);

We can get here with *errp == NULL if load_elf did not fail but tried to 
load a too large image. Is that a problem? It's the same in prep.c. Mac 
machines also try different formats but those only check for size < 0 so 
maybe not a problem there.

>         exit(1);
>     }
>     g_free(filename);
> @@ -260,10 +261,10 @@ static void pegasos2_init(MachineState *machine)
>         pm->initrd_addr = ROUND_UP(pm->initrd_addr, 4);
>         pm->initrd_addr = MAX(pm->initrd_addr, INITRD_MIN_ADDR);
>         sz = load_image_targphys(machine->initrd_filename, pm->initrd_addr,
> -                                 machine->ram_size - pm->initrd_addr, NULL);
> +                                 machine->ram_size - pm->initrd_addr, &errp);
>         if (sz <= 0) {
> -            error_report("Could not load initrd '%s'",
> -                         machine->initrd_filename);
> +            error_reportf_err(errp, "Could not load initrd '%s': ",
> +                              machine->initrd_filename);
>             exit(1);
>         }
>         pm->initrd_size = sz;
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index a3e5203970..88668a700e 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -1015,6 +1015,7 @@ static void pnv_init(MachineState *machine)
>     char *chip_typename;
>     DriveInfo *pnor;
>     DeviceState *dev;
> +    Error *errp = NULL;
>
>     if (kvm_enabled()) {
>         error_report("machine %s does not support the KVM accelerator",
> @@ -1069,9 +1070,10 @@ static void pnv_init(MachineState *machine)
>     }
>
>     fw_size = load_image_targphys(fw_filename, pnv->fw_load_addr, FW_MAX_SIZE,
> -                                    NULL);
> +                                    &errp);
>     if (fw_size < 0) {
> -        error_report("Could not load OPAL firmware '%s'", fw_filename);
> +        error_reportf_err(errp, "Could not load OPAL firmware '%s': ",
> +                          fw_filename);
>         exit(1);
>     }
>     g_free(fw_filename);
> @@ -1082,10 +1084,10 @@ static void pnv_init(MachineState *machine)
>
>         kernel_size = load_image_targphys(machine->kernel_filename,
>                                           KERNEL_LOAD_ADDR, KERNEL_MAX_SIZE,
> -                                          NULL);
> +                                          &errp);
>         if (kernel_size < 0) {
> -            error_report("Could not load kernel '%s'",
> -                         machine->kernel_filename);
> +            error_reportf_err(errp, "Could not load kernel '%s': ",
> +                              machine->kernel_filename);
>             exit(1);
>         }
>     }
> @@ -1094,10 +1096,10 @@ static void pnv_init(MachineState *machine)
>     if (machine->initrd_filename) {
>         pnv->initrd_base = INITRD_LOAD_ADDR;
>         pnv->initrd_size = load_image_targphys(machine->initrd_filename,
> -                                  pnv->initrd_base, INITRD_MAX_SIZE, NULL);
> +                                  pnv->initrd_base, INITRD_MAX_SIZE, &errp);
>         if (pnv->initrd_size < 0) {
> -            error_report("Could not load initial ram disk '%s'",
> -                         machine->initrd_filename);
> +            error_reportf_err(errp, "Could not load initial ram disk '%s': ",
> +                              machine->initrd_filename);
>             exit(1);
>         }
>     }
> diff --git a/hw/ppc/ppc440_bamboo.c b/hw/ppc/ppc440_bamboo.c
> index 7c66912c10..9e55e56ee0 100644
> --- a/hw/ppc/ppc440_bamboo.c
> +++ b/hw/ppc/ppc440_bamboo.c
> @@ -141,6 +141,7 @@ static void bamboo_init(MachineState *machine)
>     DeviceState *uicdev;
>     SysBusDevice *uicsbd;
>     int success;
> +    Error *errp = NULL;
>
>     if (kvm_enabled()) {
>         error_report("machine %s does not support the KVM accelerator",
> @@ -243,11 +244,11 @@ static void bamboo_init(MachineState *machine)
>     if (initrd_filename) {
>         initrd_size = load_image_targphys(initrd_filename, RAMDISK_ADDR,
>                                           machine->ram_size - RAMDISK_ADDR,
> -                                          NULL);
> +                                          &errp);
>
>         if (initrd_size < 0) {
> -            error_report("could not load ram disk '%s' at %x",
> -                         initrd_filename, RAMDISK_ADDR);
> +            error_reportf_err(errp, "could not load ram disk '%s' at %x: ",
> +                              initrd_filename, RAMDISK_ADDR);
>             exit(1);
>         }
>     }
> diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c
> index edd3da7102..f8cf6dc16e 100644
> --- a/hw/ppc/prep.c
> +++ b/hw/ppc/prep.c
> @@ -250,6 +250,7 @@ static void ibm_40p_init(MachineState *machine)
>     uint32_t kernel_base = 0, initrd_base = 0;
>     long kernel_size = 0, initrd_size = 0;
>     char boot_device;
> +    Error *errp = NULL;
>
>     if (kvm_enabled()) {
>         error_report("machine %s does not support the KVM accelerator",
> @@ -280,10 +281,10 @@ static void ibm_40p_init(MachineState *machine)
>     bios_size = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
>                          ELFDATA2MSB, PPC_ELF_MACHINE, 0, 0);
>     if (bios_size < 0) {
> -        bios_size = load_image_targphys(filename, BIOS_ADDR, BIOS_SIZE, NULL);
> +        bios_size = load_image_targphys(filename, BIOS_ADDR, BIOS_SIZE, &errp);
>     }
>     if (bios_size < 0 || bios_size > BIOS_SIZE) {
> -        error_report("Could not load bios image '%s'", filename);
> +        error_reportf_err(errp, "Could not load bios image '%s': ", filename);
>         return;
>     }
>     g_free(filename);
> @@ -381,10 +382,10 @@ static void ibm_40p_init(MachineState *machine)
>         kernel_size = load_image_targphys(machine->kernel_filename,
>                                           kernel_base,
>                                           machine->ram_size - kernel_base,
> -                                          NULL);
> +                                          &errp);
>         if (kernel_size < 0) {
> -            error_report("could not load kernel '%s'",
> -                         machine->kernel_filename);
> +            error_reportf_err(errp, "could not load kernel '%s': ",
> +                              machine->kernel_filename);
>             exit(1);
>         }
>         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
> @@ -395,10 +396,10 @@ static void ibm_40p_init(MachineState *machine)
>             initrd_size = load_image_targphys(machine->initrd_filename,
>                                               initrd_base,
>                                               machine->ram_size - initrd_base,
> -                                              NULL);
> +                                              &errp);
>             if (initrd_size < 0) {
> -                error_report("could not load initial ram disk '%s'",
> -                             machine->initrd_filename);
> +                error_reportf_err(errp, "could not load initial ram disk '%s': ",
> +                                  machine->initrd_filename);
>                 exit(1);
>             }
>             fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
> diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
> index 68d3eacbff..a5cb8e0738 100644
> --- a/hw/ppc/sam460ex.c
> +++ b/hw/ppc/sam460ex.c
> @@ -262,6 +262,7 @@ static void sam460ex_init(MachineState *machine)
>     struct boot_info *boot_info;
>     uint8_t *spd_data;
>     int success;
> +    Error *errp = NULL;
>
>     cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
>     env = &cpu->env;
> @@ -495,10 +496,10 @@ static void sam460ex_init(MachineState *machine)
>         initrd_size = load_image_targphys(machine->initrd_filename,
>                                           RAMDISK_ADDR,
>                                           machine->ram_size - RAMDISK_ADDR,
> -                                          NULL);
> +                                          &errp);
>         if (initrd_size < 0) {
> -            error_report("could not load ram disk '%s' at %x",
> -                    machine->initrd_filename, RAMDISK_ADDR);
> +            error_reportf_err(errp, "could not load ram disk '%s' at %x: ",
> +                              machine->initrd_filename, RAMDISK_ADDR);
>             exit(1);
>         }
>     }
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index 9e17b5a31d..0be542c888 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -2824,9 +2824,10 @@ static void spapr_machine_init(MachineState *machine)
>         error_report("Could not find LPAR firmware '%s'", bios_name);
>         exit(1);
>     }
> -    fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE, NULL);
> +    fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE, &errp);
>     if (fw_size <= 0) {
> -        error_report("Could not load LPAR firmware '%s'", filename);
> +        error_reportf_err(errp, "Could not load LPAR firmware '%s': ",
> +                          filename);
>         exit(1);
>     }
>
> @@ -3090,10 +3091,10 @@ static void spapr_machine_init(MachineState *machine)
>                                                      spapr->initrd_base,
>                                                      load_limit
>                                                      - spapr->initrd_base,
> -                                                     NULL);
> +                                                     &errp);
>             if (spapr->initrd_size < 0) {
> -                error_report("could not load initial ram disk '%s'",
> -                             initrd_filename);
> +                error_reportf_err(errp, "could not load initial ram disk '%s': ",
> +                                  initrd_filename);
>                 exit(1);
>             }
>         }
> diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
> index 00d9ab7509..a7d3de62fa 100644
> --- a/hw/ppc/virtex_ml507.c
> +++ b/hw/ppc/virtex_ml507.c
> @@ -195,6 +195,7 @@ static void virtex_init(MachineState *machine)
>     qemu_irq irq[32], cpu_irq;
>     int kernel_size;
>     int i;
> +    Error *errp = NULL;
>
>     /* init CPUs */
>     cpu = ppc440_init_xilinx(machine->cpu_type, 400000000);
> @@ -253,7 +254,7 @@ static void virtex_init(MachineState *machine)
>             /* If we failed loading ELF's try a raw image.  */
>             kernel_size = load_image_targphys(kernel_filename,
>                                               boot_offset,
> -                                              machine->ram_size, NULL);
> +                                              machine->ram_size, &errp);

What checks and reports errp? Was something left out here?

Regards,
BALATON Zoltan

>             boot_info.bootstrap_pc = boot_offset;
>             high = boot_info.bootstrap_pc + kernel_size + 8192;
>         }
> @@ -265,11 +266,11 @@ static void virtex_init(MachineState *machine)
>             initrd_base = high = ROUND_UP(high, 4);
>             initrd_size = load_image_targphys(machine->initrd_filename,
>                                               high, machine->ram_size - high,
> -                                              NULL);
> +                                              &errp);
>
>             if (initrd_size < 0) {
> -                error_report("couldn't load ram disk '%s'",
> -                             machine->initrd_filename);
> +                error_reportf_err(errp, "couldn't load ram disk '%s': ",
> +                                  machine->initrd_filename);
>                 exit(1);
>             }
>             high = ROUND_UP(high + initrd_size, 4);
>
Re: [PATCH 5/5] hw/ppc: Pass errp to load_image_targphys() and report errors
Posted by Vishal Chourasia 4 weeks ago
On Thu, Oct 16, 2025 at 09:27:36PM +0200, BALATON Zoltan wrote:
> On Thu, 16 Oct 2025, Vishal Chourasia wrote:
> > Pass errp to load_image_targphys() calls in ppc machine initialization
> > to capture detailed error information when loading firmware, kernel,
> > and initrd images.
> > 
> > Use error_reportf_err() instead of error_report() to print the
> > underlying error details along with context about which image failed
> > to load.
> > 
<snipped>
> > diff --git a/hw/ppc/pegasos2.c b/hw/ppc/pegasos2.c
> > index 7fa14fd0e6..d4703f79da 100644
> > --- a/hw/ppc/pegasos2.c
> > +++ b/hw/ppc/pegasos2.c
> > @@ -129,6 +129,7 @@ static void pegasos2_init(MachineState *machine)
> >     int i;
> >     ssize_t sz;
> >     uint8_t *spd_data;
> > +    Error *errp = NULL;
> > 
> >     /* init CPU */
> >     pm->cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
> > @@ -164,10 +165,10 @@ static void pegasos2_init(MachineState *machine)
> >                   ELFDATA2MSB, PPC_ELF_MACHINE, 0, 0);
> >     if (sz <= 0) {
> >         sz = load_image_targphys(filename, pm->vof ? 0 : PROM_ADDR, PROM_SIZE,
> > -                NULL);
> > +                                 &errp);
> >     }
> >     if (sz <= 0 || sz > PROM_SIZE) {
> > -        error_report("Could not load firmware '%s'", filename);
> > +        error_reportf_err(errp, "Could not load firmware '%s': ", filename);
> 
> We can get here with *errp == NULL if load_elf did not fail but tried to
> load a too large image. Is that a problem? It's the same in prep.c. Mac
> machines also try different formats but those only check for size < 0 so
> maybe not a problem there.
> 

/* return < 0 if error, otherwise the number of bytes loaded in memory */
ssize_t load_elf(const char *filename,

load_elf returns number of bytes. 

Yes, this is a problem. If load_elf() succeeds but the returned value
is greater than PROM_SIZE, then *errp == NULL and this would cause a
segmentation fault when trying to report the error.

Any location where an error check is performed based on a condition
other than *errp (such as size checks) runs the risk of segmentation
fault.

> >         exit(1);
> >     }
> >     g_free(filename);
> > @@ -260,10 +261,10 @@ static void pegasos2_init(MachineState *machine)
> >         pm->initrd_addr = ROUND_UP(pm->initrd_addr, 4);
> >         pm->initrd_addr = MAX(pm->initrd_addr, INITRD_MIN_ADDR);
> >         sz = load_image_targphys(machine->initrd_filename, pm->initrd_addr,
> > -                                 machine->ram_size - pm->initrd_addr, NULL);
> > +                                 machine->ram_size - pm->initrd_addr, &errp);
> >         if (sz <= 0) {
> > -            error_report("Could not load initrd '%s'",
> > -                         machine->initrd_filename);
> > +            error_reportf_err(errp, "Could not load initrd '%s': ",
> > +                              machine->initrd_filename);
> >             exit(1);
> >         }
> >         pm->initrd_size = sz;
> > diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> > index a3e5203970..88668a700e 100644
> > --- a/hw/ppc/pnv.c
> > +++ b/hw/ppc/pnv.c
> > @@ -1015,6 +1015,7 @@ static void pnv_init(MachineState *machine)
> >     char *chip_typename;
> >     DriveInfo *pnor;
> >     DeviceState *dev;
> > +    Error *errp = NULL;
> > 
> >     if (kvm_enabled()) {
> >         error_report("machine %s does not support the KVM accelerator",
> > @@ -1069,9 +1070,10 @@ static void pnv_init(MachineState *machine)
> >     }
> > 
> >     fw_size = load_image_targphys(fw_filename, pnv->fw_load_addr, FW_MAX_SIZE,
> > -                                    NULL);
> > +                                    &errp);
> >     if (fw_size < 0) {
> > -        error_report("Could not load OPAL firmware '%s'", fw_filename);
> > +        error_reportf_err(errp, "Could not load OPAL firmware '%s': ",
> > +                          fw_filename);
> >         exit(1);
> >     }
> >     g_free(fw_filename);
> > @@ -1082,10 +1084,10 @@ static void pnv_init(MachineState *machine)
> > 
> >         kernel_size = load_image_targphys(machine->kernel_filename,
> >                                           KERNEL_LOAD_ADDR, KERNEL_MAX_SIZE,
> > -                                          NULL);
> > +                                          &errp);
> >         if (kernel_size < 0) {
> > -            error_report("Could not load kernel '%s'",
> > -                         machine->kernel_filename);
> > +            error_reportf_err(errp, "Could not load kernel '%s': ",
> > +                              machine->kernel_filename);
> >             exit(1);
> >         }
> >     }
> > @@ -1094,10 +1096,10 @@ static void pnv_init(MachineState *machine)
> >     if (machine->initrd_filename) {
> >         pnv->initrd_base = INITRD_LOAD_ADDR;
> >         pnv->initrd_size = load_image_targphys(machine->initrd_filename,
> > -                                  pnv->initrd_base, INITRD_MAX_SIZE, NULL);
> > +                                  pnv->initrd_base, INITRD_MAX_SIZE, &errp);
> >         if (pnv->initrd_size < 0) {
> > -            error_report("Could not load initial ram disk '%s'",
> > -                         machine->initrd_filename);
> > +            error_reportf_err(errp, "Could not load initial ram disk '%s': ",
> > +                              machine->initrd_filename);
> >             exit(1);
> >         }
> >     }
> > diff --git a/hw/ppc/ppc440_bamboo.c b/hw/ppc/ppc440_bamboo.c
> > index 7c66912c10..9e55e56ee0 100644
> > --- a/hw/ppc/ppc440_bamboo.c
> > +++ b/hw/ppc/ppc440_bamboo.c
> > @@ -141,6 +141,7 @@ static void bamboo_init(MachineState *machine)
> >     DeviceState *uicdev;
> >     SysBusDevice *uicsbd;
> >     int success;
> > +    Error *errp = NULL;
> > 
> >     if (kvm_enabled()) {
> >         error_report("machine %s does not support the KVM accelerator",
> > @@ -243,11 +244,11 @@ static void bamboo_init(MachineState *machine)
> >     if (initrd_filename) {
> >         initrd_size = load_image_targphys(initrd_filename, RAMDISK_ADDR,
> >                                           machine->ram_size - RAMDISK_ADDR,
> > -                                          NULL);
> > +                                          &errp);
> > 
> >         if (initrd_size < 0) {
> > -            error_report("could not load ram disk '%s' at %x",
> > -                         initrd_filename, RAMDISK_ADDR);
> > +            error_reportf_err(errp, "could not load ram disk '%s' at %x: ",
> > +                              initrd_filename, RAMDISK_ADDR);
> >             exit(1);
> >         }
> >     }
> > diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c
> > index edd3da7102..f8cf6dc16e 100644
> > --- a/hw/ppc/prep.c
> > +++ b/hw/ppc/prep.c
> > @@ -250,6 +250,7 @@ static void ibm_40p_init(MachineState *machine)
> >     uint32_t kernel_base = 0, initrd_base = 0;
> >     long kernel_size = 0, initrd_size = 0;
> >     char boot_device;
> > +    Error *errp = NULL;
> > 
> >     if (kvm_enabled()) {
> >         error_report("machine %s does not support the KVM accelerator",
> > @@ -280,10 +281,10 @@ static void ibm_40p_init(MachineState *machine)
> >     bios_size = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
> >                          ELFDATA2MSB, PPC_ELF_MACHINE, 0, 0);
> >     if (bios_size < 0) {
> > -        bios_size = load_image_targphys(filename, BIOS_ADDR, BIOS_SIZE, NULL);
> > +        bios_size = load_image_targphys(filename, BIOS_ADDR, BIOS_SIZE, &errp);
> >     }
> >     if (bios_size < 0 || bios_size > BIOS_SIZE) {
> > -        error_report("Could not load bios image '%s'", filename);
> > +        error_reportf_err(errp, "Could not load bios image '%s': ", filename);
> >         return;
> >     }
> >     g_free(filename);
> > @@ -381,10 +382,10 @@ static void ibm_40p_init(MachineState *machine)
> >         kernel_size = load_image_targphys(machine->kernel_filename,
> >                                           kernel_base,
> >                                           machine->ram_size - kernel_base,
> > -                                          NULL);
> > +                                          &errp);
> >         if (kernel_size < 0) {
> > -            error_report("could not load kernel '%s'",
> > -                         machine->kernel_filename);
> > +            error_reportf_err(errp, "could not load kernel '%s': ",
> > +                              machine->kernel_filename);
> >             exit(1);
> >         }
> >         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
> > @@ -395,10 +396,10 @@ static void ibm_40p_init(MachineState *machine)
> >             initrd_size = load_image_targphys(machine->initrd_filename,
> >                                               initrd_base,
> >                                               machine->ram_size - initrd_base,
> > -                                              NULL);
> > +                                              &errp);
> >             if (initrd_size < 0) {
> > -                error_report("could not load initial ram disk '%s'",
> > -                             machine->initrd_filename);
> > +                error_reportf_err(errp, "could not load initial ram disk '%s': ",
> > +                                  machine->initrd_filename);
> >                 exit(1);
> >             }
> >             fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
> > diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
> > index 68d3eacbff..a5cb8e0738 100644
> > --- a/hw/ppc/sam460ex.c
> > +++ b/hw/ppc/sam460ex.c
> > @@ -262,6 +262,7 @@ static void sam460ex_init(MachineState *machine)
> >     struct boot_info *boot_info;
> >     uint8_t *spd_data;
> >     int success;
> > +    Error *errp = NULL;
> > 
> >     cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
> >     env = &cpu->env;
> > @@ -495,10 +496,10 @@ static void sam460ex_init(MachineState *machine)
> >         initrd_size = load_image_targphys(machine->initrd_filename,
> >                                           RAMDISK_ADDR,
> >                                           machine->ram_size - RAMDISK_ADDR,
> > -                                          NULL);
> > +                                          &errp);
> >         if (initrd_size < 0) {
> > -            error_report("could not load ram disk '%s' at %x",
> > -                    machine->initrd_filename, RAMDISK_ADDR);
> > +            error_reportf_err(errp, "could not load ram disk '%s' at %x: ",
> > +                              machine->initrd_filename, RAMDISK_ADDR);
> >             exit(1);
> >         }
> >     }
> > diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> > index 9e17b5a31d..0be542c888 100644
> > --- a/hw/ppc/spapr.c
> > +++ b/hw/ppc/spapr.c
> > @@ -2824,9 +2824,10 @@ static void spapr_machine_init(MachineState *machine)
> >         error_report("Could not find LPAR firmware '%s'", bios_name);
> >         exit(1);
> >     }
> > -    fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE, NULL);
> > +    fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE, &errp);
> >     if (fw_size <= 0) {
> > -        error_report("Could not load LPAR firmware '%s'", filename);
> > +        error_reportf_err(errp, "Could not load LPAR firmware '%s': ",
> > +                          filename);
> >         exit(1);
> >     }
> > 
> > @@ -3090,10 +3091,10 @@ static void spapr_machine_init(MachineState *machine)
> >                                                      spapr->initrd_base,
> >                                                      load_limit
> >                                                      - spapr->initrd_base,
> > -                                                     NULL);
> > +                                                     &errp);
> >             if (spapr->initrd_size < 0) {
> > -                error_report("could not load initial ram disk '%s'",
> > -                             initrd_filename);
> > +                error_reportf_err(errp, "could not load initial ram disk '%s': ",
> > +                                  initrd_filename);
> >                 exit(1);
> >             }
> >         }
> > diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
> > index 00d9ab7509..a7d3de62fa 100644
> > --- a/hw/ppc/virtex_ml507.c
> > +++ b/hw/ppc/virtex_ml507.c
> > @@ -195,6 +195,7 @@ static void virtex_init(MachineState *machine)
> >     qemu_irq irq[32], cpu_irq;
> >     int kernel_size;
> >     int i;
> > +    Error *errp = NULL;
> > 
> >     /* init CPUs */
> >     cpu = ppc440_init_xilinx(machine->cpu_type, 400000000);
> > @@ -253,7 +254,7 @@ static void virtex_init(MachineState *machine)
> >             /* If we failed loading ELF's try a raw image.  */
> >             kernel_size = load_image_targphys(kernel_filename,
> >                                               boot_offset,
> > -                                              machine->ram_size, NULL);
> > +                                              machine->ram_size, &errp);
> 
> What checks and reports errp? Was something left out here?
The error check was missing here. After reviewing the code, it seems a
check should be added. I will add it in the next version.

Thanks,
vishalc

> 
> Regards,
> BALATON Zoltan
> 
> >             boot_info.bootstrap_pc = boot_offset;
> >             high = boot_info.bootstrap_pc + kernel_size + 8192;
> >         }
> > @@ -265,11 +266,11 @@ static void virtex_init(MachineState *machine)
> >             initrd_base = high = ROUND_UP(high, 4);
> >             initrd_size = load_image_targphys(machine->initrd_filename,
> >                                               high, machine->ram_size - high,
> > -                                              NULL);
> > +                                              &errp);
> > 
> >             if (initrd_size < 0) {
> > -                error_report("couldn't load ram disk '%s'",
> > -                             machine->initrd_filename);
> > +                error_reportf_err(errp, "couldn't load ram disk '%s': ",
> > +                                  machine->initrd_filename);
> >                 exit(1);
> >             }
> >             high = ROUND_UP(high + initrd_size, 4);
> > 
>
Re: [PATCH 5/5] hw/ppc: Pass errp to load_image_targphys() and report errors
Posted by Vishal Chourasia 4 weeks ago
On Fri, Oct 17, 2025 at 01:56:46AM +0530, Vishal Chourasia wrote:
> On Thu, Oct 16, 2025 at 09:27:36PM +0200, BALATON Zoltan wrote:
> > On Thu, 16 Oct 2025, Vishal Chourasia wrote:
> > > Pass errp to load_image_targphys() calls in ppc machine initialization
> > > to capture detailed error information when loading firmware, kernel,
> > > and initrd images.
> > > 
> > > Use error_reportf_err() instead of error_report() to print the
> > > underlying error details along with context about which image failed
> > > to load.
> > > 
> <snipped>
> > > diff --git a/hw/ppc/pegasos2.c b/hw/ppc/pegasos2.c
> > > index 7fa14fd0e6..d4703f79da 100644
> > > --- a/hw/ppc/pegasos2.c
> > > +++ b/hw/ppc/pegasos2.c
> > > @@ -129,6 +129,7 @@ static void pegasos2_init(MachineState *machine)
> > >     int i;
> > >     ssize_t sz;
> > >     uint8_t *spd_data;
> > > +    Error *errp = NULL;
> > > 
> > >     /* init CPU */
> > >     pm->cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
> > > @@ -164,10 +165,10 @@ static void pegasos2_init(MachineState *machine)
> > >                   ELFDATA2MSB, PPC_ELF_MACHINE, 0, 0);
> > >     if (sz <= 0) {
> > >         sz = load_image_targphys(filename, pm->vof ? 0 : PROM_ADDR, PROM_SIZE,
> > > -                NULL);
> > > +                                 &errp);
> > >     }
> > >     if (sz <= 0 || sz > PROM_SIZE) {
> > > -        error_report("Could not load firmware '%s'", filename);
> > > +        error_reportf_err(errp, "Could not load firmware '%s': ", filename);
> > 
> > We can get here with *errp == NULL if load_elf did not fail but tried to
> > load a too large image. Is that a problem? It's the same in prep.c. Mac
> > machines also try different formats but those only check for size < 0 so
> > maybe not a problem there.
> > 
> 
> /* return < 0 if error, otherwise the number of bytes loaded in memory */
> ssize_t load_elf(const char *filename,
> 
> load_elf returns number of bytes. 
> 
> Yes, this is a problem. If load_elf() succeeds but the returned value
> is greater than PROM_SIZE, then *errp == NULL and this would cause a
> segmentation fault when trying to report the error.
> 
> Any location where an error check is performed based on a condition
> other than *errp (such as size checks) runs the risk of segmentation
> fault.
I will be sending out modifications addressing these in the next
version.

diff --git a/hw/ppc/pegasos2.c b/hw/ppc/pegasos2.c
index d4703f79da..14b679d032 100644
--- a/hw/ppc/pegasos2.c
+++ b/hw/ppc/pegasos2.c
@@ -168,7 +168,10 @@ static void pegasos2_init(MachineState *machine)
                                  &errp);
     }
     if (sz <= 0 || sz > PROM_SIZE) {
-        error_reportf_err(errp, "Could not load firmware '%s': ", filename);
+        if (!errp) {
+           error_setg(&errp, ": exceeds max supported file size %lu", PROM_SIZE / MiB);
+        }
+        error_reportf_err(errp, "Could not load firmware '%s'", filename);

Similarly for other files too. 


> 
> > >         exit(1);
> > >     }
> > >     g_free(filename);
> > > @@ -260,10 +261,10 @@ static void pegasos2_init(MachineState *machine)
> > >         pm->initrd_addr = ROUND_UP(pm->initrd_addr, 4);
> > >         pm->initrd_addr = MAX(pm->initrd_addr, INITRD_MIN_ADDR);
> > >         sz = load_image_targphys(machine->initrd_filename, pm->initrd_addr,
> > > -                                 machine->ram_size - pm->initrd_addr, NULL);
> > > +                                 machine->ram_size - pm->initrd_addr, &errp);
> > >         if (sz <= 0) {
> > > -            error_report("Could not load initrd '%s'",
> > > -                         machine->initrd_filename);
> > > +            error_reportf_err(errp, "Could not load initrd '%s': ",
> > > +                              machine->initrd_filename);
> > >             exit(1);
> > >         }
> > >         pm->initrd_size = sz;
> > > diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> > > index a3e5203970..88668a700e 100644
> > > --- a/hw/ppc/pnv.c
> > > +++ b/hw/ppc/pnv.c
> > > @@ -1015,6 +1015,7 @@ static void pnv_init(MachineState *machine)
> > >     char *chip_typename;
> > >     DriveInfo *pnor;
> > >     DeviceState *dev;
> > > +    Error *errp = NULL;
> > > 
> > >     if (kvm_enabled()) {
> > >         error_report("machine %s does not support the KVM accelerator",
> > > @@ -1069,9 +1070,10 @@ static void pnv_init(MachineState *machine)
> > >     }
> > > 
> > >     fw_size = load_image_targphys(fw_filename, pnv->fw_load_addr, FW_MAX_SIZE,
> > > -                                    NULL);
> > > +                                    &errp);
> > >     if (fw_size < 0) {
Also, we replace checks on size with errp.

diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 88668a700e..4c94bc319d 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1071,7 +1071,7 @@ static void pnv_init(MachineState *machine)

     fw_size = load_image_targphys(fw_filename, pnv->fw_load_addr, FW_MAX_SIZE,
                                     &errp);
-    if (fw_size < 0) {
+    if (errp) {
         error_reportf_err(errp, "Could not load OPAL firmware '%s': ",
                           fw_filename);
         exit(1);

Similarly, at other locations.

Thanks,
vishalc

> > > -        error_report("Could not load OPAL firmware '%s'", fw_filename);
> > > +        error_reportf_err(errp, "Could not load OPAL firmware '%s': ",
> > > +                          fw_filename);
> > >         exit(1);
> > >     }
> > >     g_free(fw_filename);
> > > @@ -1082,10 +1084,10 @@ static void pnv_init(MachineState *machine)
> > > 
> > >         kernel_size = load_image_targphys(machine->kernel_filename,
> > >                                           KERNEL_LOAD_ADDR, KERNEL_MAX_SIZE,
> > > -                                          NULL);
> > > +                                          &errp);
> > >         if (kernel_size < 0) {
> > > -            error_report("Could not load kernel '%s'",
> > > -                         machine->kernel_filename);
> > > +            error_reportf_err(errp, "Could not load kernel '%s': ",
> > > +                              machine->kernel_filename);
> > >             exit(1);
> > >         }
> > >     }
<snipped>
> > > diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
> > > index 00d9ab7509..a7d3de62fa 100644
> > > --- a/hw/ppc/virtex_ml507.c
> > > +++ b/hw/ppc/virtex_ml507.c
> > > @@ -195,6 +195,7 @@ static void virtex_init(MachineState *machine)
> > >     qemu_irq irq[32], cpu_irq;
> > >     int kernel_size;
> > >     int i;
> > > +    Error *errp = NULL;
> > > 
> > >     /* init CPUs */
> > >     cpu = ppc440_init_xilinx(machine->cpu_type, 400000000);
> > > @@ -253,7 +254,7 @@ static void virtex_init(MachineState *machine)
> > >             /* If we failed loading ELF's try a raw image.  */
> > >             kernel_size = load_image_targphys(kernel_filename,
> > >                                               boot_offset,
> > > -                                              machine->ram_size, NULL);
> > > +                                              machine->ram_size, &errp);
> > 
> > What checks and reports errp? Was something left out here?
> The error check was missing here. After reviewing the code, it seems a
> check should be added. I will add it in the next version.
>