[v1] Functional tests, Microblaze endianness & pc/q35 cleanups

[PULL 11/27] hw/i386/pc: Remove PCMachineClass::broken_reserved_end field

Thomas Huth posted 27 patches 5 months ago

Diff against v1 v2
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Maintainers: Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Yanan Wang <wangyanan55@huawei.com>, Zhao Liu <zhao1.liu@intel.com>, "Michael S. Tsirkin" <mst@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Alistair Francis <alistair@alistair23.me>, Peter Maydell <peter.maydell@linaro.org>, Jason Wang <jasowang@redhat.com>, Dmitry Fleytman <dmitry.fleytman@gmail.com>, Gerd Hoffmann <kraxel@redhat.com>, Fam Zheng <fam@euphon.net>, Thomas Huth <thuth@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Aurelien Jarno <aurelien@aurel32.net>, "Alex Bennée" <alex.bennee@linaro.org>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Fabiano Rosas <farosas@suse.de>, Laurent Vivier <lvivier@redhat.com>

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[PULL 11/27] hw/i386/pc: Remove PCMachineClass::broken_reserved_end field

Posted by Thomas Huth 5 months ago

From: Philippe Mathieu-Daudé <philmd@linaro.org>

The PCMachineClass::broken_reserved_end field was only used
by the pc-q35-2.4 and pc-i440fx-2.4 machines, which got removed.
Remove it and simplify pc_memory_init().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-ID: <20250512083948.39294-3-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 include/hw/i386/pc.h |  1 -
 hw/i386/pc.c         | 13 +++++--------
 2 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 9563674e2da..f4a874b17fc 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -107,7 +107,6 @@ struct PCMachineClass {
     /* RAM / address space compat: */
     bool gigabyte_align;
     bool has_reserved_memory;
-    bool broken_reserved_end;
     bool enforce_amd_1tb_hole;
     bool isa_bios_alias;
 
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 70656157ca0..c8bb4a3ee47 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -999,14 +999,13 @@ void pc_memory_init(PCMachineState *pcms,
 
     if (machine->device_memory) {
         uint64_t *val = g_malloc(sizeof(*val));
-        uint64_t res_mem_end = machine->device_memory->base;
-
-        if (!pcmc->broken_reserved_end) {
-            res_mem_end += memory_region_size(&machine->device_memory->mr);
-        }
+        uint64_t res_mem_end;
 
         if (pcms->cxl_devices_state.is_enabled) {
             res_mem_end = cxl_resv_end;
+        } else {
+            res_mem_end = machine->device_memory->base
+                          + memory_region_size(&machine->device_memory->mr);
         }
         *val = cpu_to_le64(ROUND_UP(res_mem_end, 1 * GiB));
         fw_cfg_add_file(fw_cfg, "etc/reserved-memory-end", val, sizeof(*val));
@@ -1044,9 +1043,7 @@ uint64_t pc_pci_hole64_start(void)
         hole64_start = pc_get_cxl_range_end(pcms);
     } else if (pcmc->has_reserved_memory && (ms->ram_size < ms->maxram_size)) {
         pc_get_device_memory_range(pcms, &hole64_start, &size);
-        if (!pcmc->broken_reserved_end) {
-            hole64_start += size;
-        }
+        hole64_start += size;
     } else {
         hole64_start = pc_above_4g_end(pcms);
     }
-- 
2.49.0