From: Michael Ellerman <mpe@ellerman.id.au>
To: kvm-ppc@vger.kernel.org
Cc: linuxppc-dev@ozlabs.org
Subject: [PATCH] KVM: PPC: Book3S HV: Use RADIX_PTE_INDEX_SIZE in Radix MMU code
Date: Tue, 18 Feb 2020 15:36:50 +1100 [thread overview]
Message-ID: <20200218043650.24410-1-mpe@ellerman.id.au> (raw)
In kvmppc_unmap_free_pte() in book3s_64_mmu_radix.c, we use the
non-constant value PTE_INDEX_SIZE to clear a PTE page.
We can instead use the constant RADIX_PTE_INDEX_SIZE, because we know
this code will only be running when the Radix MMU is active.
Note that we already use RADIX_PTE_INDEX_SIZE for the allocation of
kvm_pte_cache.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
arch/powerpc/kvm/book3s_64_mmu_radix.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index 803940d79b73..134fbc1f029f 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -425,7 +425,7 @@ static void kvmppc_unmap_free_pte(struct kvm *kvm, pte_t *pte, bool full,
unsigned int lpid)
{
if (full) {
- memset(pte, 0, sizeof(long) << PTE_INDEX_SIZE);
+ memset(pte, 0, sizeof(long) << RADIX_PTE_INDEX_SIZE);
} else {
pte_t *p = pte;
unsigned long it;
--
2.21.1
next reply other threads:[~2020-02-18 4:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-18 4:36 Michael Ellerman [this message]
2020-02-19 18:00 ` [PATCH] KVM: PPC: Book3S HV: Use RADIX_PTE_INDEX_SIZE in Radix MMU code Leonardo Bras
2020-03-19 23:31 ` Paul Mackerras
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200218043650.24410-1-mpe@ellerman.id.au \
--to=mpe@ellerman.id.au \
--cc=kvm-ppc@vger.kernel.org \
--cc=linuxppc-dev@ozlabs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).