aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorHuang Ying <ying.huang@intel.com>2010-10-11 15:31:20 -0300
committerAnthony Liguori <aliguori@us.ibm.com>2010-10-20 16:15:04 -0500
commit983dfc3b135de0a4808a41a8ca71e1809ba6a62e (patch)
tree64ccb62b04a4b7168224eb9101bdf9f0ab8ab547
parente890261f671a0573efbc024972d8769423fc82fc (diff)
Add RAM -> physical addr mapping in MCE simulation
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@redhat.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
-rw-r--r--kvm-all.c18
-rw-r--r--kvm.h6
2 files changed, 24 insertions, 0 deletions
diff --git a/kvm-all.c b/kvm-all.c
index 1cc696f3c5..37b99c7510 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 50b6c01ec7..b2fb3af8aa 100644
--- a/kvm.h
+++ b/kvm.h
@@ -174,6 +174,12 @@ static inline void cpu_synchronize_post_init(CPUState *env)
}
}
+
+#if !defined(CONFIG_USER_ONLY)
+int kvm_physical_memory_addr_from_ram(KVMState *s, ram_addr_t ram_addr,
+ target_phys_addr_t *phys_addr);
+#endif
+
#endif
int kvm_set_ioeventfd_mmio_long(int fd, uint32_t adr, uint32_t val, bool assign);