diff options
| author | Paul Mackerras <paulus@ozlabs.org> | 2018-10-08 08:30:52 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-09 08:04:27 +0300 |
| commit | df709a296ef7c493a074609019b0e074cde5c0d0 (patch) | |
| tree | c19f2c34e20f0faf7918f98dc90d2cdb528d168d /arch/powerpc/kvm/book3s_hv_ras.c | |
| parent | 41f4e631daf80d16d818ac17c4144bd5b9a11f33 (diff) | |
| download | linux-df709a296ef7c493a074609019b0e074cde5c0d0.tar.xz | |
KVM: PPC: Book3S HV: Simplify real-mode interrupt handling
This streamlines the first part of the code that handles a hypervisor
interrupt that occurred in the guest. With this, all of the real-mode
handling that occurs is done before the "guest_exit_cont" label; once
we get to that label we are committed to exiting to host virtual mode.
Thus the machine check and HMI real-mode handling is moved before that
label.
Also, the code to handle external interrupts is moved out of line, as
is the code that calls kvmppc_realmode_hmi_handler().
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv_ras.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_ras.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_ras.c b/arch/powerpc/kvm/book3s_hv_ras.c index b11043b23c18..ee564b682f0c 100644 --- a/arch/powerpc/kvm/book3s_hv_ras.c +++ b/arch/powerpc/kvm/book3s_hv_ras.c @@ -331,5 +331,13 @@ long kvmppc_realmode_hmi_handler(void) } else { wait_for_tb_resync(); } + + /* + * Reset tb_offset_applied so the guest exit code won't try + * to subtract the previous timebase offset from the timebase. + */ + if (local_paca->kvm_hstate.kvm_vcore) + local_paca->kvm_hstate.kvm_vcore->tb_offset_applied = 0; + return 0; } |