diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-06-01 10:01:03 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-01 10:01:39 +0200 |
| commit | 23db9f430be9325a861c7762c1ffadad9ca528a8 (patch) | |
| tree | 1ebb681611c96f17aa4f96e28d6923824a8b210f /drivers/lguest | |
| parent | 27b9613b7be39412775d0ab80f57229aa73bb07d (diff) | |
| parent | 3218911f839b6c85acbf872ad264ea69aa4d89ad (diff) | |
Merge branch 'linus' into perfcounters/core
Merge reason: merge almost-rc8 into perfcounters/core, which was -rc6
based - to pick up the latest upstream fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/lguest')
| -rw-r--r-- | drivers/lguest/x86/core.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c index 1a83910f674..eaf722fe309 100644 --- a/drivers/lguest/x86/core.c +++ b/drivers/lguest/x86/core.c @@ -358,6 +358,16 @@ void lguest_arch_handle_trap(struct lg_cpu *cpu) if (emulate_insn(cpu)) return; } + /* If KVM is active, the vmcall instruction triggers a + * General Protection Fault. Normally it triggers an + * invalid opcode fault (6): */ + case 6: + /* We need to check if ring == GUEST_PL and + * faulting instruction == vmcall. */ + if (is_hypercall(cpu)) { + rewrite_hypercall(cpu); + return; + } break; case 14: /* We've intercepted a Page Fault. */ /* The Guest accessed a virtual address that wasn't mapped. @@ -403,15 +413,6 @@ void lguest_arch_handle_trap(struct lg_cpu *cpu) * up the pointer now to indicate a hypercall is pending. */ cpu->hcall = (struct hcall_args *)cpu->regs; return; - case 6: - /* kvm hypercalls trigger an invalid opcode fault (6). - * We need to check if ring == GUEST_PL and - * faulting instruction == vmcall. */ - if (is_hypercall(cpu)) { - rewrite_hypercall(cpu); - return; - } - break; } /* We didn't handle the trap, so it needs to go to the Guest. */ |