qemu/s390x-protvirt-Set-guest-IPL-PSW.patch
Bruce Rogers 1f88dea66c Accepting request 822154 from home:bfrogers:branches:Virtualization
- Updating to Sphinx v3.1.2 in Factory is exposing an issue in
  qemu doc sources. Fix it
  docs-fix-trace-docs-build-with-sphinx-3..patch
- Fix DoS possibility in ati-vga emulation (CVE-2020-13800
  bsc#1172495)
  ati-vga-check-mm_index-before-recursive-.patch
- Fix DoS possibility in Network Block Device (nbd) support
  infrastructure (CVE-2020-10761 bsc#1172710)
  nbd-server-Avoid-long-error-message-asse.patch
- Fix null pointer dereference possibility (DoS) in MegaRAID SAS
  8708EM2 emulation (CVE-2020-13659 bsc#1172386)
  exec-set-map-length-to-zero-when-returni.patch
- Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation
  (CVE-2020-13362 bsc#1172383)
  megasas-use-unsigned-type-for-reply_queu.patch
- Fix legacy IGD passthrough
  hw-vfio-pci-quirks-Fix-broken-legacy-IGD.patch
- The latest gcc10 available in Factory has the fix for the
  issue this patch was created to avoid, so drop it
  build-Work-around-gcc10-bug-by-not-using.patch
- Switch to upstream versions of some patches we carry
  add-enum-cast-to-avoid-gcc10-warning.patch
  -> golan-Add-explicit-type-casts-for-nodnic.patch
  Be-explicit-about-fcommon-compiler-direc.patch
  -> build-Be-explicit-about-fcommon-compiler.patch
  Do-not-apply-WORKAROUND_CFLAGS-for-host-.patch
  -> build-Do-not-apply-WORKAROUND_CFLAGS-for.patch
  Fix-s-directive-argument-is-null-error.patch
  -> build-Fix-s-directive-argument-is-null-e.patch
  Workaround-compilation-error-with-gcc-9..patch
  -> build-Workaround-compilation-error-with-.patch
  work-around-gcc10-problem-with-zero-leng.patch
  -> intel-Avoid-spurious-compiler-warning-on.patch
- Fix vgabios issue for cirrus graphics emulation, which
  effectively downgraded it to standard VGA behavior
  vga-fix-cirrus-bios.patch
- Fix OOB access possibility in ES1370 audio device emulation
  (CVE-2020-13361 bsc#1172384)
  es1370-check-total-frame-count-against-c.patch

OBS-URL: https://build.opensuse.org/request/show/822154
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=553
2020-07-22 04:19:22 +00:00

61 lines
2.1 KiB
Diff

From: Janosch Frank <frankja@linux.ibm.com>
Date: Tue, 23 Jul 2019 13:17:32 +0200
Subject: s390x: protvirt: Set guest IPL PSW
Git-commit: e8686d9849f1625f4f4b28403f0555181b72d1b6
References: bsc#1167075
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 <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
target/s390x/cpu.c | 26 +++++++++++++++++---------
1 file changed, 17 insertions(+), 9 deletions(-)
diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index bb7a588e3b791fe48b4e0a0826dd..f2ccf0a06a0c9c1dde202988ceee 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -77,16 +77,24 @@ 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_SHORT_CTRL;
- /*
- * 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_SHORT_ADDR;
+ uint64_t spsw;
+ if (!s390_is_pv()) {
+ spsw = ldq_phys(s->as, 0);
+ cpu->env.psw.mask = spsw & PSW_MASK_SHORT_CTRL;
+ /*
+ * 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_SHORT_ADDR;
+ } else {
+ /*
+ * Firmware requires us to set the load state before we set
+ * the cpu to operating on protected guests.
+ */
+ s390_cpu_set_state(S390_CPU_STATE_LOAD, cpu);
+ }
s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
}
#endif