Section D6.7 of the ARM ARM states:
For the purpose of determining Tag Check Fault handling, unprivileged
load and store instructions are treated as if executed at EL0 when
executed at either:
- EL1, when the Effective value of PSTATE.UAO is 0.
- EL2, when both the Effective value of HCR_EL2.{E2H,
Sleep on WFI until the VTIMER is due but allow ourselves to be woken
up on IPI.
Signed-off-by: Peter Collingbourne
---
v3:
- move the simplified locking to a separate patch
- spin on sleep <2ms
v2:
- simplify locking further
- wait indefinitely on disabled or masked timers
accel/hvf/hvf-cpus.c
From: Alexander Graf
This reverts commit 926a35700f0c14d6b95cbf8c3c3cce55ec7ffc3e.
You can just drop patch 3 of your v2 instead of taking this commit.
---
accel/hvf/hvf-cpus.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/accel/hvf/hvf-cpus.c b/accel/hvf/hvf-cpus.c
index 4360f64671..e613c2
- Stop setting current_cpu
- Remove the previous WFx handler
- Simplify locking
- Remove the unused ret variable in hvf_vcpu_exec
Signed-off-by: Peter Collingbourne
---
include/sysemu/hvf_int.h | 2 -
target/arm/hvf/hvf.c | 106 ++-
2 files changed, 5 in
This variable is already being set by the generic HVF code and it's a
thread-local variable so I don't see how it can be overwritten.
Signed-off-by: Peter Collingbourne
---
target/arm/hvf/hvf.c | 8
1 file changed, 8 deletions(-)
diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c
Sleep on WFx until the VTIMER is due but allow ourselves to be woken
up on IPI.
Signed-off-by: Peter Collingbourne
---
v2:
- simplify locking further
- wait indefinitely on disabled or masked timers
accel/hvf/hvf-cpus.c | 5 +-
include/sysemu/hvf_int.h | 3 +-
target/arm/hvf/hvf.c |
Sleep on WFx until the VTIMER is due but allow ourselves to be woken
up on IPI.
Signed-off-by: Peter Collingbourne
---
Alexander Graf wrote:
> I would love to take a patch from you here :). I'll still be stuck for a
> while with the sysreg sync rework that Peter asked for before I can look
> at W
