From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Stefano Stabellini" <sstabellini@kernel.org>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"Paul Durrant" <paul@xen.org>, "Andrew Jeffery" <andrew@aj.id.au>,
"Helge Deller" <deller@gmx.de>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Joel Stanley" <joel@jms.id.au>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
qemu-trivial@nongnu.org, qemu-arm@nongnu.org,
"Hervé Poussineau" <hpoussin@reactos.org>,
"Cédric Le Goater" <clg@kaod.org>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Anthony Perard" <anthony.perard@citrix.com>,
xen-devel@lists.xenproject.org, qemu-ppc@nongnu.org,
"Richard Henderson" <rth@twiddle.net>
Subject: [PATCH 2/8] hw/pci-host/prep: Correct RAVEN bus bridge memory region size
Date: Sun, 31 May 2020 19:38:08 +0200 [thread overview]
Message-ID: <20200531173814.8734-3-f4bug@amsat.org> (raw)
In-Reply-To: <20200531173814.8734-1-f4bug@amsat.org>
memory_region_set_size() handle the 16 Exabytes limit by
special-casing the UINT64_MAX value. This is not a problem
for the 32-bit maximum, 4 GiB.
By using the UINT32_MAX value, the bm-raven MemoryRegion
ends up missing 1 byte:
$ qemu-system-ppc -M prep -S -monitor stdio -usb
memory-region: bm-raven
0000000000000000-00000000fffffffe (prio 0, i/o): bm-raven
0000000000000000-000000003effffff (prio 0, i/o): alias bm-pci-memory @pci-memory 0000000000000000-000000003effffff
0000000080000000-00000000ffffffff (prio 0, i/o): alias bm-system @system 0000000000000000-000000007fffffff
Fix by using the correct value. We now have:
memory-region: bm-raven
0000000000000000-00000000ffffffff (prio 0, i/o): bm-raven
0000000000000000-000000003effffff (prio 0, i/o): alias bm-pci-memory @pci-memory 0000000000000000-000000003effffff
0000000080000000-00000000ffffffff (prio 0, i/o): alias bm-system @system 0000000000000000-000000007fffffff
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
hw/pci-host/prep.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c
index 1a02e9a670..88e2fc66a9 100644
--- a/hw/pci-host/prep.c
+++ b/hw/pci-host/prep.c
@@ -294,7 +294,7 @@ static void raven_pcihost_initfn(Object *obj)
&s->pci_memory, &s->pci_io, 0, TYPE_PCI_BUS);
/* Bus master address space */
- memory_region_init(&s->bm, obj, "bm-raven", UINT32_MAX);
+ memory_region_init(&s->bm, obj, "bm-raven", 4 * GiB);
memory_region_init_alias(&s->bm_pci_memory_alias, obj, "bm-pci-memory",
&s->pci_memory, 0,
memory_region_size(&s->pci_memory));
--
2.21.3
WARNING: multiple messages have this Message-ID (diff)
From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Stefano Stabellini" <sstabellini@kernel.org>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"Paul Durrant" <paul@xen.org>, "Andrew Jeffery" <andrew@aj.id.au>,
"Helge Deller" <deller@gmx.de>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Joel Stanley" <joel@jms.id.au>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
qemu-trivial@nongnu.org, qemu-arm@nongnu.org,
"Hervé Poussineau" <hpoussin@reactos.org>,
"Cédric Le Goater" <clg@kaod.org>,
"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Anthony Perard" <anthony.perard@citrix.com>,
xen-devel@lists.xenproject.org, qemu-ppc@nongnu.org,
"Richard Henderson" <rth@twiddle.net>
Subject: [PATCH 2/8] hw/pci-host/prep: Correct RAVEN bus bridge memory region size
Date: Sun, 31 May 2020 19:38:08 +0200 [thread overview]
Message-ID: <20200531173814.8734-3-f4bug@amsat.org> (raw)
In-Reply-To: <20200531173814.8734-1-f4bug@amsat.org>
memory_region_set_size() handle the 16 Exabytes limit by
special-casing the UINT64_MAX value. This is not a problem
for the 32-bit maximum, 4 GiB.
By using the UINT32_MAX value, the bm-raven MemoryRegion
ends up missing 1 byte:
$ qemu-system-ppc -M prep -S -monitor stdio -usb
memory-region: bm-raven
0000000000000000-00000000fffffffe (prio 0, i/o): bm-raven
0000000000000000-000000003effffff (prio 0, i/o): alias bm-pci-memory @pci-memory 0000000000000000-000000003effffff
0000000080000000-00000000ffffffff (prio 0, i/o): alias bm-system @system 0000000000000000-000000007fffffff
Fix by using the correct value. We now have:
memory-region: bm-raven
0000000000000000-00000000ffffffff (prio 0, i/o): bm-raven
0000000000000000-000000003effffff (prio 0, i/o): alias bm-pci-memory @pci-memory 0000000000000000-000000003effffff
0000000080000000-00000000ffffffff (prio 0, i/o): alias bm-system @system 0000000000000000-000000007fffffff
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
hw/pci-host/prep.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c
index 1a02e9a670..88e2fc66a9 100644
--- a/hw/pci-host/prep.c
+++ b/hw/pci-host/prep.c
@@ -294,7 +294,7 @@ static void raven_pcihost_initfn(Object *obj)
&s->pci_memory, &s->pci_io, 0, TYPE_PCI_BUS);
/* Bus master address space */
- memory_region_init(&s->bm, obj, "bm-raven", UINT32_MAX);
+ memory_region_init(&s->bm, obj, "bm-raven", 4 * GiB);
memory_region_init_alias(&s->bm_pci_memory_alias, obj, "bm-pci-memory",
&s->pci_memory, 0,
memory_region_size(&s->pci_memory));
--
2.21.3
next prev parent reply other threads:[~2020-05-31 17:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-31 17:38 [PATCH 0/8] hw: Fix some incomplete memory region size Philippe Mathieu-Daudé
2020-05-31 17:38 ` Philippe Mathieu-Daudé
2020-05-31 17:38 ` [PATCH 1/8] hw/arm/aspeed: Correct DRAM container " Philippe Mathieu-Daudé
2020-05-31 17:38 ` Philippe Mathieu-Daudé
2020-05-31 17:38 ` Philippe Mathieu-Daudé [this message]
2020-05-31 17:38 ` [PATCH 2/8] hw/pci-host/prep: Correct RAVEN bus bridge memory " Philippe Mathieu-Daudé
2020-05-31 17:38 ` [PATCH 3/8] hw/pci/pci_bridge: Correct pci_bridge_io " Philippe Mathieu-Daudé
2020-05-31 17:38 ` Philippe Mathieu-Daudé
2020-05-31 17:38 ` [PATCH 4/8] hw/pci/pci_bridge: Use the IEC binary prefix definitions Philippe Mathieu-Daudé
2020-05-31 17:38 ` Philippe Mathieu-Daudé
2020-05-31 17:38 ` [PATCH 5/8] hw/pci-host: " Philippe Mathieu-Daudé
2020-05-31 17:38 ` Philippe Mathieu-Daudé
2020-05-31 17:38 ` [PATCH 6/8] hw/hppa/dino: " Philippe Mathieu-Daudé
2020-05-31 17:38 ` Philippe Mathieu-Daudé
2020-05-31 17:38 ` [PATCH 7/8] hw/i386/xen/xen-hvm: " Philippe Mathieu-Daudé
2020-05-31 17:38 ` Philippe Mathieu-Daudé
2020-06-01 7:26 ` Paul Durrant
2020-06-01 7:26 ` Paul Durrant
2020-06-01 8:33 ` Philippe Mathieu-Daudé
2020-06-01 8:33 ` Philippe Mathieu-Daudé
2020-06-01 11:15 ` Philippe Mathieu-Daudé
2020-05-31 17:38 ` [PATCH 8/8] target/i386/cpu: " Philippe Mathieu-Daudé
2020-05-31 17:38 ` Philippe Mathieu-Daudé
2020-05-31 19:48 ` [PATCH 0/8] hw: Fix some incomplete memory region size Peter Maydell
2020-05-31 19:48 ` Peter Maydell
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=20200531173814.8734-3-f4bug@amsat.org \
--to=f4bug@amsat.org \
--cc=andrew@aj.id.au \
--cc=anthony.perard@citrix.com \
--cc=clg@kaod.org \
--cc=deller@gmx.de \
--cc=ehabkost@redhat.com \
--cc=hpoussin@reactos.org \
--cc=joel@jms.id.au \
--cc=mst@redhat.com \
--cc=paul@xen.org \
--cc=pbonzini@redhat.com \
--cc=peter.maydell@linaro.org \
--cc=qemu-arm@nongnu.org \
--cc=qemu-devel@nongnu.org \
--cc=qemu-ppc@nongnu.org \
--cc=qemu-trivial@nongnu.org \
--cc=rth@twiddle.net \
--cc=sstabellini@kernel.org \
--cc=xen-devel@lists.xenproject.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.