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author | Peter Maydell <peter.maydell@linaro.org> | 2015-10-02 16:59:21 +0100 |
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committer | Peter Maydell <peter.maydell@linaro.org> | 2015-10-02 16:59:21 +0100 |
commit | c0b520dfb8890294a9f8879f4759172900585995 (patch) | |
tree | 71cbe19275db1592c3ce2e2ec8ecb1502526fe3c /hw | |
parent | 945507d6bcde334f42b00cae134b4d47301d1821 (diff) | |
parent | 6fdac09370530be0cc6fe9e8d425c0670ba994b1 (diff) | |
download | qemu-c0b520dfb8890294a9f8879f4759172900585995.zip qemu-c0b520dfb8890294a9f8879f4759172900585995.tar.gz qemu-c0b520dfb8890294a9f8879f4759172900585995.tar.bz2 |
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
virtio,pc features, fixes
New features:
guest RAM buffer overrun mitigation
RAM physical address gaps for memory hotplug
(except refactoring which got some review comments)
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Fri 02 Oct 2015 15:04:56 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream:
vhost-user-test: fix predictable filename on tmpfs
vhost-user-test: use tmpfs by default
pc: memhp: force gaps between DIMM's GPA
memhp: extend address auto assignment to support gaps
vhost-user: unit test for new messages
vhost-user-test: do not reinvent glib-compat.h
virtio: Notice when the system doesn't support MSIx at all
pc: Add a comment explaining why pc_compat_2_4() doesn't exist
exec: allocate PROT_NONE pages on top of RAM
oslib: allocate PROT_NONE pages on top of RAM
oslib: rework anonimous RAM allocation
virtio-net: correctly drop truncated packets
virtio: introduce virtqueue_discard()
virtio: introduce virtqueue_unmap_sg()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
-rw-r--r-- | hw/i386/pc.c | 5 | ||||
-rw-r--r-- | hw/i386/pc_piix.c | 8 | ||||
-rw-r--r-- | hw/i386/pc_q35.c | 8 | ||||
-rw-r--r-- | hw/mem/pc-dimm.c | 15 | ||||
-rw-r--r-- | hw/net/virtio-net.c | 8 | ||||
-rw-r--r-- | hw/ppc/spapr.c | 2 | ||||
-rw-r--r-- | hw/virtio/virtio-pci.c | 17 | ||||
-rw-r--r-- | hw/virtio/virtio.c | 21 |
8 files changed, 59 insertions, 25 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 461c128..efbd41a 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1629,6 +1629,7 @@ static void pc_dimm_plug(HotplugHandler *hotplug_dev, HotplugHandlerClass *hhc; Error *local_err = NULL; PCMachineState *pcms = PC_MACHINE(hotplug_dev); + PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); PCDIMMDevice *dimm = PC_DIMM(dev); PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); MemoryRegion *mr = ddc->get_memory_region(dimm); @@ -1644,7 +1645,8 @@ static void pc_dimm_plug(HotplugHandler *hotplug_dev, goto out; } - pc_dimm_memory_plug(dev, &pcms->hotplug_memory, mr, align, &local_err); + pc_dimm_memory_plug(dev, &pcms->hotplug_memory, mr, align, + pcmc->inter_dimm_gap, &local_err); if (local_err) { goto out; } @@ -1945,6 +1947,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data) PCMachineClass *pcmc = PC_MACHINE_CLASS(oc); HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); + pcmc->inter_dimm_gap = true; pcmc->get_hotplug_handler = mc->get_hotplug_handler; mc->get_hotplug_handler = pc_get_hotpug_handler; mc->cpu_index_to_socket_id = pc_cpu_index_to_socket_id; diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 3ffb05f..4514cd1 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -301,6 +301,13 @@ static void pc_init1(MachineState *machine, } } +/* Looking for a pc_compat_2_4() function? It doesn't exist. + * pc_compat_*() functions that run on machine-init time and + * change global QEMU state are deprecated. Please don't create + * one, and implement any pc-*-2.4 (and newer) compat code in + * HW_COMPAT_*, PC_COMPAT_*, or * pc_*_machine_options(). + */ + static void pc_compat_2_3(MachineState *machine) { PCMachineState *pcms = PC_MACHINE(machine); @@ -482,6 +489,7 @@ static void pc_i440fx_2_4_machine_options(MachineClass *m) m->alias = NULL; m->is_default = 0; pcmc->broken_reserved_end = true; + pcmc->inter_dimm_gap = false; SET_MACHINE_COMPAT(m, PC_COMPAT_2_4); } diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index 1b7d3b6..1f100b1 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -284,6 +284,13 @@ static void pc_q35_init(MachineState *machine) } } +/* Looking for a pc_compat_2_4() function? It doesn't exist. + * pc_compat_*() functions that run on machine-init time and + * change global QEMU state are deprecated. Please don't create + * one, and implement any pc-*-2.4 (and newer) compat code in + * HW_COMPAT_*, PC_COMPAT_*, or * pc_*_machine_options(). + */ + static void pc_compat_2_3(MachineState *machine) { PCMachineState *pcms = PC_MACHINE(machine); @@ -385,6 +392,7 @@ static void pc_q35_2_4_machine_options(MachineClass *m) pc_q35_2_5_machine_options(m); m->alias = NULL; pcmc->broken_reserved_end = true; + pcmc->inter_dimm_gap = false; SET_MACHINE_COMPAT(m, PC_COMPAT_2_4); } diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c index bb04862..6cc6ac3 100644 --- a/hw/mem/pc-dimm.c +++ b/hw/mem/pc-dimm.c @@ -32,7 +32,8 @@ typedef struct pc_dimms_capacity { } pc_dimms_capacity; void pc_dimm_memory_plug(DeviceState *dev, MemoryHotplugState *hpms, - MemoryRegion *mr, uint64_t align, Error **errp) + MemoryRegion *mr, uint64_t align, bool gap, + Error **errp) { int slot; MachineState *machine = MACHINE(qdev_get_machine()); @@ -48,7 +49,7 @@ void pc_dimm_memory_plug(DeviceState *dev, MemoryHotplugState *hpms, addr = pc_dimm_get_free_addr(hpms->base, memory_region_size(&hpms->mr), - !addr ? NULL : &addr, align, + !addr ? NULL : &addr, align, gap, memory_region_size(mr), &local_err); if (local_err) { goto out; @@ -287,8 +288,8 @@ static int pc_dimm_built_list(Object *obj, void *opaque) uint64_t pc_dimm_get_free_addr(uint64_t address_space_start, uint64_t address_space_size, - uint64_t *hint, uint64_t align, uint64_t size, - Error **errp) + uint64_t *hint, uint64_t align, bool gap, + uint64_t size, Error **errp) { GSList *list = NULL, *item; uint64_t new_addr, ret = 0; @@ -333,13 +334,15 @@ uint64_t pc_dimm_get_free_addr(uint64_t address_space_start, goto out; } - if (ranges_overlap(dimm->addr, dimm_size, new_addr, size)) { + if (ranges_overlap(dimm->addr, dimm_size, new_addr, + size + (gap ? 1 : 0))) { if (hint) { DeviceState *d = DEVICE(dimm); error_setg(errp, "address range conflicts with '%s'", d->id); goto out; } - new_addr = QEMU_ALIGN_UP(dimm->addr + dimm_size, align); + new_addr = QEMU_ALIGN_UP(dimm->addr + dimm_size + (gap ? 1 : 0), + align); } } ret = new_addr; diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index d388c55..a877614 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -1094,13 +1094,7 @@ static ssize_t virtio_net_receive(NetClientState *nc, const uint8_t *buf, size_t * must have consumed the complete packet. * Otherwise, drop it. */ if (!n->mergeable_rx_bufs && offset < size) { -#if 0 - error_report("virtio-net truncated non-mergeable packet: " - "i %zd mergeable %d offset %zd, size %zd, " - "guest hdr len %zd, host hdr len %zd", - i, n->mergeable_rx_bufs, - offset, size, n->guest_hdr_len, n->host_hdr_len); -#endif + virtqueue_discard(q->rx_vq, &elem, total); return size; } diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index a9b5f2a..d1b0e53 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -2096,7 +2096,7 @@ static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev, goto out; } - pc_dimm_memory_plug(dev, &ms->hotplug_memory, mr, align, &local_err); + pc_dimm_memory_plug(dev, &ms->hotplug_memory, mr, align, false, &local_err); if (local_err) { goto out; } diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index eda8205..6703806 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1491,12 +1491,17 @@ static void virtio_pci_device_plugged(DeviceState *d, Error **errp) pci_set_long(cfg_mask->pci_cfg_data, ~0x0); } - if (proxy->nvectors && - msix_init_exclusive_bar(&proxy->pci_dev, proxy->nvectors, - proxy->msix_bar)) { - error_report("unable to init msix vectors to %" PRIu32, - proxy->nvectors); - proxy->nvectors = 0; + if (proxy->nvectors) { + int err = msix_init_exclusive_bar(&proxy->pci_dev, proxy->nvectors, + proxy->msix_bar); + if (err) { + /* Notice when a system that supports MSIx can't initialize it. */ + if (err != -ENOTSUP) { + error_report("unable to init msix vectors to %" PRIu32, + proxy->nvectors); + } + proxy->nvectors = 0; + } } proxy->pci_dev.config_write = virtio_write_config; diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 7504f8b..d0bc72e 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -244,14 +244,12 @@ int virtio_queue_empty(VirtQueue *vq) return vring_avail_idx(vq) == vq->last_avail_idx; } -void virtqueue_fill(VirtQueue *vq, const VirtQueueElement *elem, - unsigned int len, unsigned int idx) +static void virtqueue_unmap_sg(VirtQueue *vq, const VirtQueueElement *elem, + unsigned int len) { unsigned int offset; int i; - trace_virtqueue_fill(vq, elem, len, idx); - offset = 0; for (i = 0; i < elem->in_num; i++) { size_t size = MIN(len - offset, elem->in_sg[i].iov_len); @@ -267,6 +265,21 @@ void virtqueue_fill(VirtQueue *vq, const VirtQueueElement *elem, cpu_physical_memory_unmap(elem->out_sg[i].iov_base, elem->out_sg[i].iov_len, 0, elem->out_sg[i].iov_len); +} + +void virtqueue_discard(VirtQueue *vq, const VirtQueueElement *elem, + unsigned int len) +{ + vq->last_avail_idx--; + virtqueue_unmap_sg(vq, elem, len); +} + +void virtqueue_fill(VirtQueue *vq, const VirtQueueElement *elem, + unsigned int len, unsigned int idx) +{ + trace_virtqueue_fill(vq, elem, len, idx); + + virtqueue_unmap_sg(vq, elem, len); idx = (idx + vring_used_idx(vq)) % vq->vring.num; |