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virtio, acpi: fixes, cleanups

Browse source 
A bunch of minor fixes all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, acpi: fixes, cleanups

A bunch of minor fixes all over the place.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Sun 16 Jun 2019 21:46:31 BST
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  tests/rebuild-expected-aml.sh: blow out difflist
  q35: update DSDT
  q35: fix mmconfig and PCI0._CRS
  hw/acpi: extract acpi_add_rom_blob()
  vhost: fix vhost_log size overflow during migration
  docs/vhost-user.json: some firmware.json copy leftovers
  vhost-user-gpu: initialize msghdr & iov at declaration
  vhost-user-input: check ioctl(EVIOCGNAME) return value
  vhost-user: improve error report
  vhost-user: check unix_listen() return value
  vhost-user-gpu: do not send scanout update if no GPU socket

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2019-06-17 11:55:14 +01:00
parent 53defa0570 5f6b3561bf
commit 5d0e569447
19 changed files with 127 additions and 76 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
contrib/vhost-user-gpu/main.c
View file

@ -138,22 +138,20 @@ static int
vg_sock_fd_write(int sock, const void *buf, ssize_t buflen, int fd)
{
ssize_t ret;
struct msghdr msg;
struct iovec iov;
struct iovec iov = {
.iov_base = (void *)buf,
.iov_len = buflen,
};
struct msghdr msg = {
.msg_iov = &iov,
.msg_iovlen = 1,
};
union {
struct cmsghdr cmsghdr;
char control[CMSG_SPACE(sizeof(int))];
} cmsgu;
struct cmsghdr *cmsg;
iov.iov_base = (void *)buf;
iov.iov_len = buflen;
msg.msg_name = NULL;
msg.msg_namelen = 0;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
if (fd != -1) {
msg.msg_control = cmsgu.control;
msg.msg_controllen = sizeof(cmsgu.control);
@ -164,9 +162,6 @@ vg_sock_fd_write(int sock, const void *buf, ssize_t buflen, int fd)
cmsg->cmsg_type = SCM_RIGHTS;
*((int *)CMSG_DATA(cmsg)) = fd;
} else {
msg.msg_control = NULL;
msg.msg_controllen = 0;
}
do {
@ -354,7 +349,7 @@ vg_disable_scanout(VuGpu *g, int scanout_id)
scanout->width = 0;
scanout->height = 0;
{
if (g->sock_fd >= 0) {
VhostUserGpuMsg msg = {
.request = VHOST_USER_GPU_SCANOUT,
.size = sizeof(VhostUserGpuScanout),
@ -1160,13 +1155,17 @@ main(int argc, char *argv[])
if (opt_socket_path) {
int lsock = unix_listen(opt_socket_path, &error_fatal);
if (lsock < 0) {
g_printerr("Failed to listen on %s.\n", opt_socket_path);
exit(EXIT_FAILURE);
}
fd = accept(lsock, NULL, NULL);
close(lsock);
} else {
fd = opt_fdnum;
}
if (fd == -1) {
g_printerr("Invalid socket");
g_printerr("Invalid vhost-user socket.\n");
exit(EXIT_FAILURE);
}

12
contrib/vhost-user-input/main.c
View file

@ -342,7 +342,11 @@ main(int argc, char *argv[])
vi.config = g_array_new(false, false, sizeof(virtio_input_config));
memset(&id, 0, sizeof(id));
ioctl(vi.evdevfd, EVIOCGNAME(sizeof(id.u.string) - 1), id.u.string);
if (ioctl(vi.evdevfd, EVIOCGNAME(sizeof(id.u.string) - 1),
id.u.string) < 0) {
g_printerr("Failed to get evdev name: %s\n", g_strerror(errno));
exit(EXIT_FAILURE);
}
id.select = VIRTIO_INPUT_CFG_ID_NAME;
id.size = strlen(id.u.string);
g_array_append_val(vi.config, id);
@ -367,13 +371,17 @@ main(int argc, char *argv[])
if (opt_socket_path) {
int lsock = unix_listen(opt_socket_path, &error_fatal);
if (lsock < 0) {
g_printerr("Failed to listen on %s.\n", opt_socket_path);
exit(EXIT_FAILURE);
}
fd = accept(lsock, NULL, NULL);
close(lsock);
} else {
fd = opt_fdnum;
}
if (fd == -1) {
g_printerr("Invalid socket");
g_printerr("Invalid vhost-user socket.\n");
exit(EXIT_FAILURE);
}
vug_init(&vi.dev, fd, vi_panic, &vuiface);

6
docs/interop/vhost-user.json
View file

@ -178,11 +178,11 @@
#
# - /usr/share/qemu/vhost-user/50-crosvm-gpu.json
#
# then the sysadmin can prevent the default QEMU being used at all with
# then the sysadmin can prevent the default QEMU GPU being used at all with
#
# $ touch /etc/qemu/vhost-user/50-qemu-gpu.json
#
# The sysadmin can replace/alter the distro default OVMF with
# The sysadmin can replace/alter the distro default QEMU GPU with
#
# $ vim /etc/qemu/vhost-user/50-qemu-gpu.json
#
@ -190,7 +190,7 @@
#
# $ vim /etc/qemu/vhost-user/10-qemu-gpu.json
#
# or they can provide a parallel OVMF with lower priority
# or they can provide a parallel QEMU GPU with lower priority
#
# $ vim /etc/qemu/vhost-user/99-qemu-gpu.json
#

2
hw/acpi/Makefile.objs
View file

@ -10,7 +10,7 @@ common-obj-$(call lnot,$(CONFIG_ACPI_X86)) += acpi-stub.o
common-obj-y += acpi_interface.o
common-obj-y += bios-linker-loader.o
common-obj-y += aml-build.o
common-obj-y += aml-build.o utils.o
common-obj-$(CONFIG_ACPI_PCI) += pci.o
common-obj-$(CONFIG_TPM) += tpm.o

35
hw/acpi/utils.c Normal file
View file

@ -0,0 +1,35 @@
/*
* Utilities for generating ACPI tables and passing them to Guests
*
* Copyright (C) 2019 Intel Corporation
* Copyright (C) 2019 Red Hat Inc
*
* Author: Wei Yang <richardw.yang@linux.intel.com>
* Author: Michael S. Tsirkin <mst@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "hw/acpi/aml-build.h"
#include "hw/acpi/utils.h"
#include "hw/loader.h"
MemoryRegion *acpi_add_rom_blob(FWCfgCallback update, void *opaque,
GArray *blob, const char *name,
uint64_t max_size)
{
return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size, -1,
name, update, opaque, NULL, true);
}

26
hw/arm/virt-acpi-build.c
View file

@ -36,9 +36,9 @@
#include "hw/acpi/acpi.h"
#include "hw/nvram/fw_cfg.h"
#include "hw/acpi/bios-linker-loader.h"
#include "hw/loader.h"
#include "hw/hw.h"
#include "hw/acpi/aml-build.h"
#include "hw/acpi/utils.h"
#include "hw/acpi/pci.h"
#include "hw/pci/pcie_host.h"
#include "hw/pci/pci.h"
@ -865,14 +865,6 @@ static void virt_acpi_build_reset(void *build_opaque)
build_state->patched = false;
}
static MemoryRegion *acpi_add_rom_blob(AcpiBuildState *build_state,
GArray *blob, const char *name,
uint64_t max_size)
{
return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size, -1,
name, virt_acpi_build_update, build_state, NULL, true);
}
static const VMStateDescription vmstate_virt_acpi_build = {
.name = "virt_acpi_build",
.version_id = 1,
@ -904,20 +896,22 @@ void virt_acpi_setup(VirtMachineState *vms)
virt_acpi_build(vms, &tables);
/* Now expose it all to Guest */
build_state->table_mr = acpi_add_rom_blob(build_state, tables.table_data,
ACPI_BUILD_TABLE_FILE,
ACPI_BUILD_TABLE_MAX_SIZE);
build_state->table_mr = acpi_add_rom_blob(virt_acpi_build_update,
build_state, tables.table_data,
ACPI_BUILD_TABLE_FILE,
ACPI_BUILD_TABLE_MAX_SIZE);
assert(build_state->table_mr != NULL);
build_state->linker_mr =
acpi_add_rom_blob(build_state, tables.linker->cmd_blob,
"etc/table-loader", 0);
acpi_add_rom_blob(virt_acpi_build_update, build_state,
tables.linker->cmd_blob, "etc/table-loader", 0);
fw_cfg_add_file(vms->fw_cfg, ACPI_BUILD_TPMLOG_FILE, tables.tcpalog->data,
acpi_data_len(tables.tcpalog));
build_state->rsdp_mr = acpi_add_rom_blob(build_state, tables.rsdp,
ACPI_BUILD_RSDP_FILE, 0);
build_state->rsdp_mr = acpi_add_rom_blob(virt_acpi_build_update,
build_state, tables.rsdp,
ACPI_BUILD_RSDP_FILE, 0);
qemu_register_reset(virt_acpi_build_reset, build_state);
virt_acpi_build_reset(build_state);

40
hw/i386/acpi-build.c
View file

@ -37,7 +37,6 @@
#include "hw/acpi/piix4.h"
#include "hw/nvram/fw_cfg.h"
#include "hw/acpi/bios-linker-loader.h"
#include "hw/loader.h"
#include "hw/isa/isa.h"
#include "hw/block/fdc.h"
#include "hw/acpi/memory_hotplug.h"
@ -58,6 +57,7 @@
#include "hw/i386/x86-iommu.h"
#include "hw/acpi/aml-build.h"
#include "hw/acpi/utils.h"
#include "hw/acpi/pci.h"
#include "qom/qom-qobject.h"
@ -121,6 +121,8 @@ typedef struct FwCfgTPMConfig {
uint8_t tpmppi_version;
} QEMU_PACKED FwCfgTPMConfig;
static bool acpi_get_mcfg(AcpiMcfgInfo *mcfg);
static void init_common_fadt_data(Object *o, AcpiFadtData *data)
{
uint32_t io = object_property_get_uint(o, ACPI_PM_PROP_PM_IO_BASE, NULL);
@ -1806,6 +1808,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
CrsRangeSet crs_range_set;
PCMachineState *pcms = PC_MACHINE(machine);
PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(machine);
AcpiMcfgInfo mcfg;
uint32_t nr_mem = machine->ram_slots;
int root_bus_limit = 0xFF;
PCIBus *bus = NULL;
@ -1920,6 +1923,17 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
}
}
/*
* At this point crs_range_set has all the ranges used by pci
* busses *other* than PCI0. These ranges will be excluded from
* the PCI0._CRS. Add mmconfig to the set so it will be excluded
* too.
*/
if (acpi_get_mcfg(&mcfg)) {
crs_range_insert(crs_range_set.mem_ranges,
mcfg.base, mcfg.base + mcfg.size - 1);
}
scope = aml_scope("\\_SB.PCI0");
/* build PCI0._CRS */
crs = aml_resource_template();
@ -2823,14 +2837,6 @@ static void acpi_build_reset(void *build_opaque)
build_state->patched = 0;
}
static MemoryRegion *acpi_add_rom_blob(AcpiBuildState *build_state,
GArray *blob, const char *name,
uint64_t max_size)
{
return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size, -1,
name, acpi_build_update, build_state, NULL, true);
}
static const VMStateDescription vmstate_acpi_build = {
.name = "acpi_build",
.version_id = 1,
@ -2872,14 +2878,15 @@ void acpi_setup(void)
acpi_build(&tables, MACHINE(pcms));
/* Now expose it all to Guest */
build_state->table_mr = acpi_add_rom_blob(build_state, tables.table_data,
ACPI_BUILD_TABLE_FILE,
ACPI_BUILD_TABLE_MAX_SIZE);
build_state->table_mr = acpi_add_rom_blob(acpi_build_update,
build_state, tables.table_data,
ACPI_BUILD_TABLE_FILE,
ACPI_BUILD_TABLE_MAX_SIZE);
assert(build_state->table_mr != NULL);
build_state->linker_mr =
acpi_add_rom_blob(build_state, tables.linker->cmd_blob,
"etc/table-loader", 0);
acpi_add_rom_blob(acpi_build_update, build_state,
tables.linker->cmd_blob, "etc/table-loader", 0);
fw_cfg_add_file(pcms->fw_cfg, ACPI_BUILD_TPMLOG_FILE,
tables.tcpalog->data, acpi_data_len(tables.tcpalog));
@ -2916,8 +2923,9 @@ void acpi_setup(void)
build_state->rsdp_mr = NULL;
} else {
build_state->rsdp = NULL;
build_state->rsdp_mr = acpi_add_rom_blob(build_state, tables.rsdp,
ACPI_BUILD_RSDP_FILE, 0);
build_state->rsdp_mr = acpi_add_rom_blob(acpi_build_update,
build_state, tables.rsdp,
ACPI_BUILD_RSDP_FILE, 0);
}
qemu_register_reset(acpi_build_reset, build_state);

31
hw/pci-host/q35.c
View file

@ -260,15 +260,6 @@ static void q35_host_initfn(Object *obj)
object_property_add_link(obj, MCH_HOST_PROP_IO_MEM, TYPE_MEMORY_REGION,
(Object **) &s->mch.address_space_io,
qdev_prop_allow_set_link_before_realize, 0, NULL);
/* Leave enough space for the biggest MCFG BAR */
/* TODO: this matches current bios behaviour, but
* it's not a power of two, which means an MTRR
* can't cover it exactly.
*/
range_set_bounds(&s->mch.pci_hole,
MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT + MCH_HOST_BRIDGE_PCIEXBAR_MAX,
IO_APIC_DEFAULT_ADDRESS - 1);
}
static const TypeInfo q35_host_info = {
@ -340,20 +331,6 @@ static void mch_update_pciexbar(MCHPCIState *mch)
}
addr = pciexbar & addr_mask;
pcie_host_mmcfg_update(pehb, enable, addr, length);
/* Leave enough space for the MCFG BAR */
/*
* TODO: this matches current bios behaviour, but it's not a power of two,
* which means an MTRR can't cover it exactly.
*/
if (enable) {
range_set_bounds(&mch->pci_hole,
addr + length,
IO_APIC_DEFAULT_ADDRESS - 1);
} else {
range_set_bounds(&mch->pci_hole,
MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT,
IO_APIC_DEFAULT_ADDRESS - 1);
}
}
/* PAM */
@ -486,6 +463,14 @@ static void mch_update(MCHPCIState *mch)
mch_update_pam(mch);
mch_update_smram(mch);
mch_update_ext_tseg_mbytes(mch);
/*
* pci hole goes from end-of-low-ram to io-apic.
* mmconfig will be excluded by the dsdt builder.
*/
range_set_bounds(&mch->pci_hole,
mch->below_4g_mem_size,
IO_APIC_DEFAULT_ADDRESS - 1);
}
static int mch_post_load(void *opaque, int version_id)

10
hw/virtio/vhost.c
View file

@ -131,6 +131,11 @@ static int vhost_sync_dirty_bitmap(struct vhost_dev *dev,
}
for (i = 0; i < dev->nvqs; ++i) {
struct vhost_virtqueue *vq = dev->vqs + i;
if (!vq->used_phys && !vq->used_size) {
continue;
}
vhost_dev_sync_region(dev, section, start_addr, end_addr, vq->used_phys,
range_get_last(vq->used_phys, vq->used_size));
}
@ -168,6 +173,11 @@ static uint64_t vhost_get_log_size(struct vhost_dev *dev)
}
for (i = 0; i < dev->nvqs; ++i) {
struct vhost_virtqueue *vq = dev->vqs + i;
if (!vq->used_phys && !vq->used_size) {
continue;
}
uint64_t last = vq->used_phys + vq->used_size - 1;
log_size = MAX(log_size, last / VHOST_LOG_CHUNK + 1);
}

9
include/hw/acpi/utils.h Normal file
View file

@ -0,0 +1,9 @@
#ifndef HW_ACPI_UTILS_H
#define HW_ACPI_UTILS_H
#include "hw/nvram/fw_cfg.h"
MemoryRegion *acpi_add_rom_blob(FWCfgCallback update, void *opaque,
GArray *blob, const char *name,
uint64_t max_size);
#endif

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tests/data/acpi/q35/DSDT
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tests/data/acpi/q35/DSDT.bridge
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3
tests/data/acpi/rebuild-expected-aml.sh
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@ -29,5 +29,8 @@ for qemu in $qemu_bins; do
TEST_ACPI_REBUILD_AML=y QTEST_QEMU_BINARY=$qemu tests/bios-tables-test
done
eval `grep SRC_PATH= config-host.mak`
echo '/* List of comma-separated changed AML files to ignore */' > ${SRC_PATH}/tests/bios-tables-test-allowed-diff.h
echo "The files were rebuilt and can be added to git."