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Subject[PATCH 2/3] KVM: Pass fs, gs segment bases to x86 emulator
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From: Yaniv Kamay <yaniv@qumranet.com>

The x86-64 respects segment bases for fs and gs.

Signed-off-by: Yaniv Kamay <yaniv@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

Index: linux-2.6/drivers/kvm/kvm_main.c
===================================================================
--- linux-2.6.orig/drivers/kvm/kvm_main.c
+++ linux-2.6/drivers/kvm/kvm_main.c
@@ -1907,17 +1907,16 @@ static int emulate_instruction(struct kv
emulate_ctxt.ds_base = 0;
emulate_ctxt.es_base = 0;
emulate_ctxt.ss_base = 0;
- emulate_ctxt.gs_base = 0;
- emulate_ctxt.fs_base = 0;
} else {
emulate_ctxt.cs_base = vmcs_readl(GUEST_CS_BASE);
emulate_ctxt.ds_base = vmcs_readl(GUEST_DS_BASE);
emulate_ctxt.es_base = vmcs_readl(GUEST_ES_BASE);
emulate_ctxt.ss_base = vmcs_readl(GUEST_SS_BASE);
- emulate_ctxt.gs_base = vmcs_readl(GUEST_GS_BASE);
- emulate_ctxt.fs_base = vmcs_readl(GUEST_FS_BASE);
}

+ emulate_ctxt.gs_base = vmcs_readl(GUEST_GS_BASE);
+ emulate_ctxt.fs_base = vmcs_readl(GUEST_FS_BASE);
+
vcpu->mmio_is_write = 0;
r = x86_emulate_memop(&emulate_ctxt, &emulate_ops);

-
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