This allows implementations to reuse code.
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
arch/x86/include/asm/kvm_emulate.h | 3 ++-
arch/x86/kvm/x86.c | 4 ++--
arch/x86/kvm/x86.h | 2 +-
3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 6040d11..31d2d80 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -105,7 +105,8 @@ struct x86_emulate_ops {
* @bytes: [IN ] Number of bytes to write to memory.
*/
int (*write_std)(struct x86_emulate_ctxt *ctxt,
- unsigned long addr, void *val, unsigned int bytes,
+ unsigned long addr, const void *val,
+ unsigned int bytes,
struct x86_exception *fault);
/*
* fetch: Read bytes of standard (non-emulated/special) memory.
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6b37f18..cb7b825 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3989,12 +3989,12 @@ static int kvm_read_guest_virt_system(struct x86_emulate_ctxt *ctxt,
}
int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt,
- gva_t addr, void *val,
+ gva_t addr, const void *val,
unsigned int bytes,
struct x86_exception *exception)
{
struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
- void *data = val;
+ const void *data = val;
int r = X86EMUL_CONTINUE;
while (bytes) {
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index d36fe23..a1a0a9b 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -122,7 +122,7 @@ int kvm_read_guest_virt(struct x86_emulate_ctxt *ctxt,
struct x86_exception *exception);
int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt,
- gva_t addr, void *val, unsigned int bytes,
+ gva_t addr, const void *val, unsigned int bytes,
struct x86_exception *exception);
#endif
--
1.7.5.3
--
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