To have a very localized fix just to the issue we see I tried O2 with
diff --git a/target/riscv/pmu.c b/target/riscv/pmu.c
index a68809eef3..5317d8be57 100644
--- a/target/riscv/pmu.c
+++ b/target/riscv/pmu.c
@@ -189,6 +189,13 @@ static int riscv_pmu_incr_ctr_rv64(RISCVCPU *cpu, uint32_t
ctr_idx)
* env->priv and env->virt_enabled contain old priv and old virt and
* new priv and new virt values are passed in as arguments.
*/
+#if defined(__powerpc64__) || defined(__ppc64__)
+ #define NO_GCSE_ATTR __attribute__((optimize("no-gcse")))
+#else
+ #define NO_GCSE_ATTR
+#endif
+
+NO_GCSE_ATTR
static void riscv_pmu_icount_update_priv(CPURISCVState *env,
target_ulong newpriv, bool new_virt)
{
If that works we have our mitigation and I have enough to report upstream gcc
as well as FYI to qemu for their consideration. I'll also copy some of the
binaries here to ease debugging.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2120835
Title:
EDK2 tests for riscv emulation fail against qemu 10.1 on ppc64el
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2120835/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
