* [Qemu-devel] [PATCH] target/arm: Enable API, APK bits in SCR, HCR
@ 2019-01-29 14:35 Richard Henderson
2019-01-31 13:49 ` Peter Maydell
0 siblings, 1 reply; 2+ messages in thread
From: Richard Henderson @ 2019-01-29 14:35 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell, alex.bennee
These bits become writable with the ARMv8.3-PAuth extension.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/helper.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 70277222da..a1a2ac7d06 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -1747,6 +1747,9 @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
if (cpu_isar_feature(aa64_lor, cpu)) {
valid_mask |= SCR_TLOR;
}
+ if (cpu_isar_feature(aa64_pauth, cpu)) {
+ valid_mask |= SCR_API | SCR_APK;
+ }
/* Clear all-context RES0 bits. */
value &= valid_mask;
@@ -4444,6 +4447,9 @@ static void hcr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
if (cpu_isar_feature(aa64_lor, cpu)) {
valid_mask |= HCR_TLOR;
}
+ if (cpu_isar_feature(aa64_pauth, cpu)) {
+ valid_mask |= HCR_API | HCR_APK;
+ }
/* Clear RES0 bits. */
value &= valid_mask;
--
2.17.2
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [Qemu-devel] [PATCH] target/arm: Enable API, APK bits in SCR, HCR
2019-01-29 14:35 [Qemu-devel] [PATCH] target/arm: Enable API, APK bits in SCR, HCR Richard Henderson
@ 2019-01-31 13:49 ` Peter Maydell
0 siblings, 0 replies; 2+ messages in thread
From: Peter Maydell @ 2019-01-31 13:49 UTC (permalink / raw)
To: Richard Henderson; +Cc: QEMU Developers, Alex Bennée
On Tue, 29 Jan 2019 at 14:35, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> These bits become writable with the ARMv8.3-PAuth extension.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
> target/arm/helper.c | 6 ++++++
> 1 file changed, 6 insertions(+)
Applied to target-arm.next, thanks.
-- PMM
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-01-29 14:35 [Qemu-devel] [PATCH] target/arm: Enable API, APK bits in SCR, HCR Richard Henderson
2019-01-31 13:49 ` Peter Maydell
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