From: Nicholas Piggin <npiggin@gmail.com>
To: qemu-ppc@nongnu.org
Cc: "Nicholas Piggin" <npiggin@gmail.com>,
qemu-devel@nongnu.org,
"Harsh Prateek Bora" <harshpb@linux.ibm.com>,
"Daniel Henrique Barboza" <danielhb413@gmail.com>,
"Cédric Le Goater" <clg@kaod.org>,
"David Gibson" <david@gibson.dropbear.id.au>,
"Greg Kurz" <groug@kaod.org>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PATCH v2 4/7] hw/ppc/spapr: Test whether TCG is enabled with tcg_enabled()
Date: Thu, 22 Jun 2023 19:33:54 +1000 [thread overview]
Message-ID: <20230622093357.255649-5-npiggin@gmail.com> (raw)
In-Reply-To: <20230622093357.255649-1-npiggin@gmail.com>
From: Philippe Mathieu-Daudé <philmd@linaro.org>
Although the PPC target only supports the TCG and KVM
accelerators, QEMU supports more. We can not assume that
'!kvm == tcg', so test for the correct accelerator. This
also eases code review, because here we don't care about
KVM, we really want to test for TCG.
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[np: Fix changelog typo noticed by Zoltan]
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
hw/ppc/spapr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index e55905a1f0..8e7d497f25 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -2525,7 +2525,7 @@ static void spapr_set_vsmt_mode(SpaprMachineState *spapr, Error **errp)
int ret;
unsigned int smp_threads = ms->smp.threads;
- if (!kvm_enabled() && (smp_threads > 1)) {
+ if (tcg_enabled() && (smp_threads > 1)) {
error_setg(errp, "TCG cannot support more than 1 thread/core "
"on a pseries machine");
return;
--
2.40.1
next prev parent reply other threads:[~2023-06-22 9:36 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-22 9:33 [PATCH v2 0/7] target/ppc: TCG SMT support for spapr machine Nicholas Piggin
2023-06-22 9:33 ` [PATCH v2 1/7] target/ppc: Add initial flags and helpers for SMT support Nicholas Piggin
2023-06-22 17:33 ` Cédric Le Goater
2023-06-22 9:33 ` [PATCH v2 2/7] target/ppc: Add support for SMT CTRL register Nicholas Piggin
2023-06-22 17:32 ` Cédric Le Goater
2023-06-22 9:33 ` [PATCH v2 3/7] target/ppc: Add msgsnd/p and DPDES SMT support Nicholas Piggin
2023-06-22 17:33 ` Cédric Le Goater
2023-06-22 9:33 ` Nicholas Piggin [this message]
2023-06-22 9:33 ` [PATCH v2 5/7] spapr: TCG allow up to 8-thread SMT on POWER8 and newer CPUs Nicholas Piggin
2023-06-22 10:06 ` Cédric Le Goater
2023-06-22 10:49 ` Cédric Le Goater
2023-06-23 6:32 ` Cédric Le Goater
2023-06-22 9:33 ` [PATCH v2 6/7] tests/avocado: boot ppc64 pseries to Linux VFS mount Nicholas Piggin
2023-06-22 17:33 ` Cédric Le Goater
2023-06-22 9:33 ` [PATCH v2 7/7] tests/avocado: Add ppc64 pseries multiprocessor boot tests Nicholas Piggin
2023-06-22 17:33 ` Cédric Le Goater
2023-06-23 9:33 ` [PATCH v2 0/7] target/ppc: TCG SMT support for spapr machine Cédric Le Goater
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