From: Huang Ying <ying.huang@xxxxxxxxx>
In QEMU-KVM, physical address != RAM address. While MCE simulation
needs physical address instead of RAM address. So
kvm_physical_memory_addr_from_ram() is implemented to do the
conversion, and it is invoked before being filled in the IA32_MCi_ADDR
MSR.
Reported-by: Dean Nelson <dnelson@xxxxxxxxxx>
Signed-off-by: Huang Ying <ying.huang@xxxxxxxxx>
Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
kvm-all.c | 18 ++++++++++++++++++
kvm.h | 3 +++
2 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/kvm-all.c b/kvm-all.c
index 1cc696f..37b99c7 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -137,6 +137,24 @@ static KVMSlot *kvm_lookup_overlapping_slot(KVMState *s,
return found;
}
+int kvm_physical_memory_addr_from_ram(KVMState *s, ram_addr_t ram_addr,
+ target_phys_addr_t *phys_addr)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(s->slots); i++) {
+ KVMSlot *mem = &s->slots[i];
+
+ if (ram_addr >= mem->phys_offset &&
+ ram_addr < mem->phys_offset + mem->memory_size) {
+ *phys_addr = mem->start_addr + (ram_addr - mem->phys_offset);
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
static int kvm_set_user_memory_region(KVMState *s, KVMSlot *slot)
{
struct kvm_userspace_memory_region mem;
diff --git a/kvm.h b/kvm.h
index 50b6c01..8f5a754 100644
--- a/kvm.h
+++ b/kvm.h
@@ -174,6 +174,9 @@ static inline void cpu_synchronize_post_init(CPUState *env)
}
}
+int kvm_physical_memory_addr_from_ram(KVMState *s, ram_addr_t ram_addr,
+ target_phys_addr_t *phys_addr);
+
#endif
int kvm_set_ioeventfd_mmio_long(int fd, uint32_t adr, uint32_t val, bool assign);
--
1.7.2.1
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
