From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org
Cc: Thomas Huth <thuth@redhat.com>, Riku Voipio <riku.voipio@iki.fi>,
Eduardo Habkost <ehabkost@redhat.com>,
David Hildenbrand <david@redhat.com>,
Aleksandar Rikalo <arikalo@wavecomp.com>,
Cornelia Huck <cohuck@redhat.com>,
Aleksandar Markovic <amarkovic@wavecomp.com>,
qemu-s390x@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
Aurelien Jarno <aurelien@aurel32.net>,
Richard Henderson <rth@twiddle.net>
Subject: [Qemu-devel] [PATCH v1 5/9] mips/tcg: Call probe_write() for CONFIG_USER_ONLY as well
Date: Fri, 23 Aug 2019 12:07:37 +0200 [thread overview]
Message-ID: <20190823100741.9621-6-david@redhat.com> (raw)
In-Reply-To: <20190823100741.9621-1-david@redhat.com>
Let's call it also for CONFIG_USER_ONLY. While at it, add a FIXME and get
rid of one local variable.
MIPS code probably needs a bigger refactoring in regards of
ensure_writable_pages(), similar to s390x, so for example, watchpoints
can be handled reliably later. The actually accessed addresses should
be probed only, not full pages.
Signed-off-by: David Hildenbrand <david@redhat.com>
---
target/mips/op_helper.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c
index f88a3ab904..221e8bb1d7 100644
--- a/target/mips/op_helper.c
+++ b/target/mips/op_helper.c
@@ -4536,16 +4536,14 @@ static inline void ensure_writable_pages(CPUMIPSState *env,
int mmu_idx,
uintptr_t retaddr)
{
-#if !defined(CONFIG_USER_ONLY)
- target_ulong page_addr;
+ /* FIXME: Probe the actual accesses (pass and use a size) */
if (unlikely(MSA_PAGESPAN(addr))) {
/* first page */
probe_write(env, addr, 0, mmu_idx, retaddr);
/* second page */
- page_addr = (addr & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
- probe_write(env, page_addr, 0, mmu_idx, retaddr);
+ addr = (addr & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
+ probe_write(env, addr, 0, mmu_idx, retaddr);
}
-#endif
}
void helper_msa_st_b(CPUMIPSState *env, uint32_t wd,
--
2.21.0
next prev parent reply other threads:[~2019-08-23 10:11 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-23 10:07 [Qemu-devel] [PATCH v1 0/9] tcg: probe_write() refactorings and watchpoints David Hildenbrand
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 1/9] s390x/tcg: Use guest_addr_valid() instead of h2g_valid() in probe_write_access() David Hildenbrand
2019-08-23 14:49 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 2/9] s390x/tcg: Fix length calculation " David Hildenbrand
2019-08-23 14:50 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 3/9] tcg: Factor out CONFIG_USER_ONLY probe_write() from s390x code David Hildenbrand
2019-08-23 15:17 ` Richard Henderson
2019-08-23 15:22 ` Richard Henderson
2019-08-23 15:49 ` David Hildenbrand
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 4/9] tcg: Enforce single page access in probe_write() for !CONFIG_USER_ONLY David Hildenbrand
2019-08-23 15:28 ` Richard Henderson
2019-08-23 15:29 ` Richard Henderson
2019-08-23 10:07 ` David Hildenbrand [this message]
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 6/9] hppa/tcg: Call probe_write() also for CONFIG_USER_ONLY David Hildenbrand
2019-08-23 15:31 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 7/9] s390x/tcg: Pass a size to probe_write() in do_csst() David Hildenbrand
2019-08-23 15:32 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 8/9] exec.c: Factor out core logic of check_watchpoint() David Hildenbrand
2019-08-23 11:27 ` David Hildenbrand
2019-08-23 16:09 ` Richard Henderson
2019-08-23 18:25 ` David Hildenbrand
2019-08-24 15:27 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 9/9] tcg: Check for watchpoints in probe_write() David Hildenbrand
2019-08-23 16:15 ` Richard Henderson
2019-08-24 19:45 ` Richard Henderson
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