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vhost,virtio,vdpa,firmware: bugfixes

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bugfixes all over the place
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fixes from Michael Tsirkin:
 "Bugfixes all over the place"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost-vdpa: fix use after free in vhost_vdpa_probe()
  virtio_pci: Switch away from deprecated irq_set_affinity_hint
  riscv, qemu_fw_cfg: Add support for RISC-V architecture
  vdpa_sim_blk: allocate the buffer zeroed
  virtio_pci: move structure to a header
This commit is contained in:
Linus Torvalds 2023-11-16 07:39:37 -05:00
commit 372bed5fbb
8 changed files with 22 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/firmware/Kconfig
View File

@ -131,7 +131,7 @@ config RASPBERRYPI_FIRMWARE
config FW_CFG_SYSFS
tristate "QEMU fw_cfg device support in sysfs"
depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || SPARC || X86)
depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || RISCV || SPARC || X86)
depends on HAS_IOPORT_MAP
default n
help

2
drivers/firmware/qemu_fw_cfg.c
View File

@ -211,7 +211,7 @@ static void fw_cfg_io_cleanup(void)
/* arch-specific ctrl & data register offsets are not available in ACPI, DT */
#if !(defined(FW_CFG_CTRL_OFF) && defined(FW_CFG_DATA_OFF))
# if (defined(CONFIG_ARM) || defined(CONFIG_ARM64))
# if (defined(CONFIG_ARM) || defined(CONFIG_ARM64) || defined(CONFIG_RISCV))
# define FW_CFG_CTRL_OFF 0x08
# define FW_CFG_DATA_OFF 0x00
# define FW_CFG_DMA_OFF 0x10

4
drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
View File

@ -437,7 +437,7 @@ static int vdpasim_blk_dev_add(struct vdpa_mgmt_dev *mdev, const char *name,
if (blk->shared_backend) {
blk->buffer = shared_buffer;
} else {
blk->buffer = kvmalloc(VDPASIM_BLK_CAPACITY << SECTOR_SHIFT,
blk->buffer = kvzalloc(VDPASIM_BLK_CAPACITY << SECTOR_SHIFT,
GFP_KERNEL);
if (!blk->buffer) {
ret = -ENOMEM;
@ -495,7 +495,7 @@ static int __init vdpasim_blk_init(void)
goto parent_err;
if (shared_backend) {
shared_buffer = kvmalloc(VDPASIM_BLK_CAPACITY << SECTOR_SHIFT,
shared_buffer = kvzalloc(VDPASIM_BLK_CAPACITY << SECTOR_SHIFT,
GFP_KERNEL);
if (!shared_buffer) {
ret = -ENOMEM;

1
drivers/vhost/vdpa.c
View File

@ -1582,7 +1582,6 @@ static int vhost_vdpa_probe(struct vdpa_device *vdpa)
err:
put_device(&v->dev);
ida_simple_remove(&vhost_vdpa_ida, v->minor);
return r;
}

6
drivers/virtio/virtio_pci_common.c
View File

@ -242,7 +242,7 @@ void vp_del_vqs(struct virtio_device *vdev)
if (v != VIRTIO_MSI_NO_VECTOR) {
int irq = pci_irq_vector(vp_dev->pci_dev, v);
irq_set_affinity_hint(irq, NULL);
irq_update_affinity_hint(irq, NULL);
free_irq(irq, vq);
}
}
@ -443,10 +443,10 @@ int vp_set_vq_affinity(struct virtqueue *vq, const struct cpumask *cpu_mask)
mask = vp_dev->msix_affinity_masks[info->msix_vector];
irq = pci_irq_vector(vp_dev->pci_dev, info->msix_vector);
if (!cpu_mask)
irq_set_affinity_hint(irq, NULL);
irq_update_affinity_hint(irq, NULL);
else {
cpumask_copy(mask, cpu_mask);
irq_set_affinity_hint(irq, mask);
irq_set_affinity_and_hint(irq, mask);
}
}
return 0;

7
drivers/virtio/virtio_pci_modern_dev.c
View File

@ -294,9 +294,10 @@ int vp_modern_probe(struct virtio_pci_modern_device *mdev)
err = -EINVAL;
mdev->common = vp_modern_map_capability(mdev, common,
sizeof(struct virtio_pci_common_cfg), 4,
0, sizeof(struct virtio_pci_modern_common_cfg),
&mdev->common_len, NULL);
sizeof(struct virtio_pci_common_cfg), 4, 0,
offsetofend(struct virtio_pci_modern_common_cfg,
queue_reset),
&mdev->common_len, NULL);
if (!mdev->common)
goto err_map_common;
mdev->isr = vp_modern_map_capability(mdev, isr, sizeof(u8), 1,

7
include/linux/virtio_pci_modern.h
View File

@ -5,13 +5,6 @@
#include <linux/pci.h>
#include <linux/virtio_pci.h>
struct virtio_pci_modern_common_cfg {
struct virtio_pci_common_cfg cfg;
__le16 queue_notify_data; /* read-write */
__le16 queue_reset; /* read-write */
};
/**
* struct virtio_pci_modern_device - info for modern PCI virtio
* @pci_dev: Ptr to the PCI device struct

11
include/uapi/linux/virtio_pci.h
View File

@ -166,6 +166,17 @@ struct virtio_pci_common_cfg {
__le32 queue_used_hi; /* read-write */
};
/*
* Warning: do not use sizeof on this: use offsetofend for
* specific fields you need.
*/
struct virtio_pci_modern_common_cfg {
struct virtio_pci_common_cfg cfg;
__le16 queue_notify_data; /* read-write */
__le16 queue_reset; /* read-write */
};
/* Fields in VIRTIO_PCI_CAP_PCI_CFG: */
struct virtio_pci_cfg_cap {
struct virtio_pci_cap cap;