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KVM: x86 emulator: retire ->write_std() 

Theoretically used to acccess memory known to be ordinary RAM, it was
never implemented.  It is questionable whether it is possible to implement
it correctly.

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity 2007-11-20 12:49:31 +02:00
parent b4231d6180
commit 93a0039c8d
2 changed files with 0 additions and 21 deletions
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10
drivers/kvm/x86.c
View File

@ -1162,15 +1162,6 @@ int emulator_read_std(unsigned long addr,
}
EXPORT_SYMBOL_GPL(emulator_read_std);
static int emulator_write_std(unsigned long addr,
const void *val,
unsigned int bytes,
struct kvm_vcpu *vcpu)
{
pr_unimpl(vcpu, "emulator_write_std: addr %lx n %d\n", addr, bytes);
return X86EMUL_UNHANDLEABLE;
}
static int emulator_read_emulated(unsigned long addr,
void *val,
unsigned int bytes,
@ -1367,7 +1358,6 @@ EXPORT_SYMBOL_GPL(kvm_report_emulation_failure);
struct x86_emulate_ops emulate_ops = {
.read_std = emulator_read_std,
.write_std = emulator_write_std,
.read_emulated = emulator_read_emulated,
.write_emulated = emulator_write_emulated,
.cmpxchg_emulated = emulator_cmpxchg_emulated,

11
drivers/kvm/x86_emulate.h
View File

@ -62,17 +62,6 @@ struct x86_emulate_ops {
int (*read_std)(unsigned long addr, void *val,
unsigned int bytes, struct kvm_vcpu *vcpu);
/*
* write_std: Write bytes of standard (non-emulated/special) memory.
* Used for stack operations, and others.
* @addr: [IN ] Linear address to which to write.
* @val: [IN ] Value to write to memory (low-order bytes used as
* required).
* @bytes: [IN ] Number of bytes to write to memory.
*/
int (*write_std)(unsigned long addr, const void *val,
unsigned int bytes, struct kvm_vcpu *vcpu);
/*
* read_emulated: Read bytes from emulated/special memory area.
* @addr: [IN ] Linear address from which to read.