From: William Roche <william.roche@oracle.com>
In case of a large page impacted by a memory error, complete
the existing Qemu error message to indicate that the error is
injected in the VM. Also include a simlar message to the ARM
platform.
Only in the case of a large page impacted, we now report:
...Memory Error at QEMU addr X and GUEST addr Y on lost large page SIZE@ADDR of type...
Signed-off-by: William Roche <william.roche@oracle.com>
---
accel/kvm/kvm-all.c | 4 ----
system/physmem.c | 12 ++++++------
target/arm/kvm.c | 13 +++++++++++++
target/i386/kvm/kvm.c | 18 ++++++++++++++----
4 files changed, 33 insertions(+), 14 deletions(-)
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 24c0c4ce3f..8a47aa7258 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -1286,10 +1286,6 @@ static void kvm_unpoison_all(void *param)
void kvm_hwpoison_page_add(ram_addr_t ram_addr)
{
HWPoisonPage *page;
- size_t page_size = qemu_ram_pagesize_from_addr(ram_addr);
-
- if (page_size > TARGET_PAGE_SIZE)
- ram_addr = QEMU_ALIGN_DOWN(ram_addr, page_size);
QLIST_FOREACH(page, &hwpoison_page_list, list) {
if (page->ram_addr == ram_addr) {
diff --git a/system/physmem.c b/system/physmem.c
index 26711df2d2..b8daf42d20 100644
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -2201,7 +2201,7 @@ static void qemu_ram_remap_mmap(RAMBlock *block, void* vaddr, size_t size,
}
if (area != vaddr) {
error_report("Could not remap addr: " RAM_ADDR_FMT "@" RAM_ADDR_FMT "",
- size, addr);
+ size, block->offset + offset);
exit(1);
}
}
@@ -2227,7 +2227,7 @@ void qemu_ram_remap(ram_addr_t addr)
abort();
} else {
if (ram_block_discard_range(block, offset + block->fd_offset,
- length) != 0) {
+ page_size) != 0) {
/*
* Fold back to using mmap(), but it cannot zap pagecache
* pages, only anonymous pages. As soon as we might have
@@ -2236,15 +2236,15 @@ void qemu_ram_remap(ram_addr_t addr)
* We don't take the risk of using mmap and fail now.
*/
if (block->fd >= 0 && (qemu_ram_is_shared(block) ||
- (length > TARGET_PAGE_SIZE))) {
+ (page_size > TARGET_PAGE_SIZE))) {
error_report("Memory poison recovery failure addr: "
RAM_ADDR_FMT "@" RAM_ADDR_FMT "",
- length, addr);
+ page_size, addr);
exit(1);
}
qemu_ram_remap_mmap(block, vaddr, page_size, offset);
- memory_try_enable_merging(vaddr, size);
- qemu_ram_setup_dump(vaddr, size);
+ memory_try_enable_merging(vaddr, page_size);
+ qemu_ram_setup_dump(vaddr, page_size);
}
}
diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index 7b6812c0de..d92b195851 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -2366,6 +2366,8 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
{
ram_addr_t ram_addr;
hwaddr paddr;
+ size_t page_size;
+ char lp_msg[57];
assert(code == BUS_MCEERR_AR || code == BUS_MCEERR_AO);
@@ -2373,6 +2375,14 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
ram_addr = qemu_ram_addr_from_host(addr);
if (ram_addr != RAM_ADDR_INVALID &&
kvm_physical_memory_addr_from_host(c->kvm_state, addr, &paddr)) {
+ page_size = qemu_ram_pagesize_from_addr(ram_addr);
+ if (page_size > TARGET_PAGE_SIZE) {
+ ram_addr = ROUND_DOWN(ram_addr, page_size);
+ sprintf(lp_msg, " on lost large page "
+ RAM_ADDR_FMT "@" RAM_ADDR_FMT "", page_size, ram_addr);
+ } else {
+ lp_msg[0] = '\0';
+ }
kvm_hwpoison_page_add(ram_addr);
/*
* If this is a BUS_MCEERR_AR, we know we have been called
@@ -2389,6 +2399,9 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
kvm_cpu_synchronize_state(c);
if (!acpi_ghes_record_errors(ACPI_HEST_SRC_ID_SEA, paddr)) {
kvm_inject_arm_sea(c);
+ error_report("Guest Memory Error at QEMU addr %p and "
+ "GUEST addr 0x%" HWADDR_PRIx "%s of type %s injected",
+ addr, paddr, lp_msg, "BUS_MCEERR_AR");
} else {
error_report("failed to record the error");
abort();
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index 8e17942c3b..182985b159 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -741,6 +741,8 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
CPUX86State *env = &cpu->env;
ram_addr_t ram_addr;
hwaddr paddr;
+ size_t page_size;
+ char lp_msg[57];
/* If we get an action required MCE, it has been injected by KVM
* while the VM was running. An action optional MCE instead should
@@ -753,6 +755,14 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
ram_addr = qemu_ram_addr_from_host(addr);
if (ram_addr != RAM_ADDR_INVALID &&
kvm_physical_memory_addr_from_host(c->kvm_state, addr, &paddr)) {
+ page_size = qemu_ram_pagesize_from_addr(ram_addr);
+ if (page_size > TARGET_PAGE_SIZE) {
+ ram_addr = ROUND_DOWN(ram_addr, page_size);
+ sprintf(lp_msg, " on lost large page "
+ RAM_ADDR_FMT "@" RAM_ADDR_FMT "", page_size, ram_addr);
+ } else {
+ lp_msg[0] = '\0';
+ }
kvm_hwpoison_page_add(ram_addr);
kvm_mce_inject(cpu, paddr, code);
@@ -763,12 +773,12 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
*/
if (code == BUS_MCEERR_AR) {
error_report("Guest MCE Memory Error at QEMU addr %p and "
- "GUEST addr 0x%" HWADDR_PRIx " of type %s injected",
- addr, paddr, "BUS_MCEERR_AR");
+ "GUEST addr 0x%" HWADDR_PRIx "%s of type %s injected",
+ addr, paddr, lp_msg, "BUS_MCEERR_AR");
} else {
warn_report("Guest MCE Memory Error at QEMU addr %p and "
- "GUEST addr 0x%" HWADDR_PRIx " of type %s injected",
- addr, paddr, "BUS_MCEERR_AO");
+ "GUEST addr 0x%" HWADDR_PRIx "%s of type %s injected",
+ addr, paddr, lp_msg, "BUS_MCEERR_AO");
}
return;
--
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