On 03/09/2010 04:09 PM, Gleb Natapov wrote:
Provide get_cached_descriptor(), set_cached_descriptor(),
get_segment_selector(), set_segment_selector(), get_gdt(),
write_std() callbacks.

Signed-off-by: Gleb Natapov<[email protected]>
---
  arch/x86/include/asm/kvm_emulate.h |   16 +++++
  arch/x86/kvm/x86.c                 |  130 +++++++++++++++++++++++++++++++----
  2 files changed, 131 insertions(+), 15 deletions(-)

diff --git a/arch/x86/include/asm/kvm_emulate.h 
b/arch/x86/include/asm/kvm_emulate.h
index 032d02f..e881618 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -63,6 +63,15 @@ struct x86_emulate_ops {
                        unsigned int bytes, struct kvm_vcpu *vcpu, u32 *error);

        /*
+        * write_std: Write bytes of standard (non-emulated/special) memory.
+        *            Used for descriptor writing.
+        *  @addr:  [IN ] Linear address to which to write.
+        *  @val:   [OUT] Value write to memory, zero-extended to 'u_long'.
+        *  @bytes: [IN ] Number of bytes to write to memory.
+        */
+       int (*write_std)(unsigned long addr, void *val,
+                        unsigned int bytes, struct kvm_vcpu *vcpu, u32 *error);

Descriptor writes need an atomic kvm_set_guest_bit(), no?

--
error compiling committee.c: too many arguments to function

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