[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v5 12/18] s390x: protvirt: Set guest IPL PSW
From: |
Janosch Frank |
Subject: |
[PATCH v5 12/18] s390x: protvirt: Set guest IPL PSW |
Date: |
Wed, 26 Feb 2020 07:20:32 -0500 |
Handling of CPU reset and setting of the IPL psw from guest storage at
offset 0 is done by a Ultravisor call. Let's only fetch it if
necessary.
Signed-off-by: Janosch Frank <address@hidden>
Reviewed-by: Thomas Huth <address@hidden>
---
target/s390x/cpu.c | 23 ++++++++++++++---------
1 file changed, 14 insertions(+), 9 deletions(-)
diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index c4d937e35a..cd53e123f3 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -78,16 +78,21 @@ static bool s390_cpu_has_work(CPUState *cs)
static void s390_cpu_load_normal(CPUState *s)
{
S390CPU *cpu = S390_CPU(s);
- uint64_t spsw = ldq_phys(s->as, 0);
-
- cpu->env.psw.mask = spsw & PSW_MASK_ESA_MASK;
- /*
- * Invert short psw indication, so SIE will report a specification
- * exception if it was not set.
- */
- cpu->env.psw.mask ^= PSW_MASK_SHORTPSW;
- cpu->env.psw.addr = spsw & PSW_MASK_ESA_ADDR;
+ CPUS390XState *env = &cpu->env;
+ uint64_t spsw;
+ if (!env->pv) {
+ spsw = ldq_phys(s->as, 0);
+ cpu->env.psw.mask = spsw & PSW_MASK_ESA_MASK;
+ /*
+ * Invert short psw indication, so SIE will report a specification
+ * exception if it was not set.
+ */
+ cpu->env.psw.mask ^= PSW_MASK_SHORTPSW;
+ cpu->env.psw.addr = spsw & PSW_MASK_ESA_ADDR;
+ } else {
+ s390_cpu_set_state(S390_CPU_STATE_LOAD, cpu);
+ }
s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
}
#endif
--
2.20.1
[PATCH v5 09/18] s390x: Add SIDA memory ops, Janosch Frank, 2020/02/26
[PATCH v5 13/18] s390x: protvirt: Move diag 308 data over SIDAD, Janosch Frank, 2020/02/26
[PATCH v5 12/18] s390x: protvirt: Set guest IPL PSW,
Janosch Frank <=
[PATCH v5 11/18] s390x: protvirt: SCLP interpretation, Janosch Frank, 2020/02/26
[PATCH v5 08/18] s390x: protvirt: KVM intercept changes, Janosch Frank, 2020/02/26
[PATCH v5 10/18] s390x: protvirt: Move STSI data over SIDAD, Janosch Frank, 2020/02/26
[PATCH v5 15/18] s390x: protvirt: Move IO control structures over SIDA, Janosch Frank, 2020/02/26
[PATCH v5 16/18] s390x: protvirt: Handle SIGP store status correctly, Janosch Frank, 2020/02/26
[PATCH v5 18/18] docs: Add protvirt docs, Janosch Frank, 2020/02/26
[PATCH v5 17/18] s390x: Add unpack facility feature to GA1, Janosch Frank, 2020/02/26
[PATCH v5 14/18] s390x: protvirt: Disable address checks for PV guest IO emulation, Janosch Frank, 2020/02/26
[PATCH v5 03/18] s390x: protvirt: Add diag308 subcodes 8 - 10, Janosch Frank, 2020/02/26
Re: [PATCH v5 00/18] s390x: Protected Virtualization support, Cornelia Huck, 2020/02/26