diff options
| author | Kevin Hilman <khilman@linaro.org> | 2015-08-14 09:45:22 -0700 |
|---|---|---|
| committer | Kevin Hilman <khilman@linaro.org> | 2015-08-14 09:55:00 -0700 |
| commit | 4dddf720534a9a14fa9b048e7930dcc55b1b1e40 (patch) | |
| tree | 6dead0bf02a9c08038d3238b1599823a25d9e881 /arch/arm/kvm/interrupts_head.S | |
| parent | a93bdb5f55d343fb51892050ed49da9d476da18a (diff) | |
| parent | 07818b5b1ba0f494a7255ab634bad2dd2b908ed0 (diff) | |
Merge branch 'linux-linaro-lsk-v3.10' into linux-linaro-lsk-v3.10-androidlsk-v3.10-15.08-android
Conflicts:
fs/exec.c
Resolution summary:
Conflict between upstream/LTS commit 9eae8ac6ab40 (fs: take
i_mutex during prepare_binprm for set[ug]id executables) and
android commit 9d0ff694bc22 (sched: move no_new_privs into new
atomic flags). Resolution: move task_no_new_privs() usage into
new function created by upstream/LTS comit.
Diffstat (limited to 'arch/arm/kvm/interrupts_head.S')
| -rw-r--r-- | arch/arm/kvm/interrupts_head.S | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/arch/arm/kvm/interrupts_head.S b/arch/arm/kvm/interrupts_head.S index 98c8c5b9a87f..f8f322102989 100644 --- a/arch/arm/kvm/interrupts_head.S +++ b/arch/arm/kvm/interrupts_head.S @@ -592,8 +592,13 @@ ARM_BE8(rev r6, r6 ) .endm /* Configures the HCPTR (Hyp Coprocessor Trap Register) on entry/return - * (hardware reset value is 0). Keep previous value in r2. */ -.macro set_hcptr operation, mask + * (hardware reset value is 0). Keep previous value in r2. + * An ISB is emited on vmexit/vmtrap, but executed on vmexit only if + * VFP wasn't already enabled (always executed on vmtrap). + * If a label is specified with vmexit, it is branched to if VFP wasn't + * enabled. + */ +.macro set_hcptr operation, mask, label = none mrc p15, 4, r2, c1, c1, 2 ldr r3, =\mask .if \operation == vmentry @@ -602,6 +607,17 @@ ARM_BE8(rev r6, r6 ) bic r3, r2, r3 @ Don't trap defined coproc-accesses .endif mcr p15, 4, r3, c1, c1, 2 + .if \operation != vmentry + .if \operation == vmexit + tst r2, #(HCPTR_TCP(10) | HCPTR_TCP(11)) + beq 1f + .endif + isb + .if \label != none + b \label + .endif +1: + .endif .endm /* Configures the HDCR (Hyp Debug Configuration Register) on entry/return |