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authorGlauber de Oliveira Costa <gcosta@redhat.com>2008-01-07 11:05:35 -0200
committerRusty Russell <rusty@rustcorp.com.au>2008-01-30 22:50:13 +1100
commit4665ac8e28c30c2a015c617c55783c0bf3a49c05 (patch)
tree15992d7e693126be7f758e694c8a544306576dfd /drivers/lguest/x86
parent66686c2ab08feb721ca4d98285fba64acdf6017f (diff)
downloadblackbird-op-linux-4665ac8e28c30c2a015c617c55783c0bf3a49c05.tar.gz
blackbird-op-linux-4665ac8e28c30c2a015c617c55783c0bf3a49c05.zip
lguest: makes special fields be per-vcpu
lguest struct have room for some fields, namely, cr2, ts, esp1 and ss1, that are not really guest-wide, but rather, vcpu-wide. This patch puts it in the vcpu struct Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/x86')
-rw-r--r--drivers/lguest/x86/core.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index e989b8358864..65f2e3809475 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -95,8 +95,8 @@ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages)
/* Set up the two "TSS" members which tell the CPU what stack to use
* for traps which do directly into the Guest (ie. traps at privilege
* level 1). */
- pages->state.guest_tss.esp1 = lg->esp1;
- pages->state.guest_tss.ss1 = lg->ss1;
+ pages->state.guest_tss.esp1 = cpu->esp1;
+ pages->state.guest_tss.ss1 = cpu->ss1;
/* Copy direct-to-Guest trap entries. */
if (lg->changed & CHANGED_IDT)
@@ -165,12 +165,10 @@ static void run_guest_once(struct lg_cpu *cpu, struct lguest_pages *pages)
* are disabled: we own the CPU. */
void lguest_arch_run_guest(struct lg_cpu *cpu)
{
- struct lguest *lg = cpu->lg;
-
/* Remember the awfully-named TS bit? If the Guest has asked to set it
* we set it now, so we can trap and pass that trap to the Guest if it
* uses the FPU. */
- if (lg->ts)
+ if (cpu->ts)
lguest_set_ts();
/* SYSENTER is an optimized way of doing system calls. We can't allow
@@ -325,7 +323,7 @@ void lguest_arch_handle_trap(struct lg_cpu *cpu)
/* If the Guest doesn't want to know, we already restored the
* Floating Point Unit, so we just continue without telling
* it. */
- if (!lg->ts)
+ if (!cpu->ts)
return;
break;
case 32 ... 255:
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