diff options
| author | Paul Durrant <paul.durrant@citrix.com> | 2015-01-20 11:06:19 +0000 |
|---|---|---|
| committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2015-01-20 14:24:10 +0000 |
| commit | 3996e85c1822e05c50250f8d2d1e57b6bea1229d (patch) | |
| tree | 275774a6b43e86327dcbc98021e3ddfa52d54bf1 /trace-events | |
| parent | 707ff80021ccd7a68f4b3d2c44eebf87efbb41c4 (diff) | |
Xen: Use the ioreq-server API when available
The ioreq-server API added to Xen 4.5 offers better security than
the existing Xen/QEMU interface because the shared pages that are
used to pass emulation request/results back and forth are removed
from the guest's memory space before any requests are serviced.
This prevents the guest from mapping these pages (they are in a
well known location) and attempting to attack QEMU by synthesizing
its own request structures. Hence, this patch modifies configure
to detect whether the API is available, and adds the necessary
code to use the API if it is.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Diffstat (limited to 'trace-events')
| -rw-r--r-- | trace-events | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/trace-events b/trace-events index 8acbcce0f0..4ec81eb534 100644 --- a/trace-events +++ b/trace-events @@ -897,6 +897,15 @@ pvscsi_tx_rings_num_pages(const char* label, uint32_t num) "Number of %s pages: # xen-hvm.c xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: %#lx, size %#lx" xen_client_set_memory(uint64_t start_addr, unsigned long size, bool log_dirty) "%#"PRIx64" size %#lx, log_dirty %i" +xen_ioreq_server_create(uint32_t id) "id: %u" +xen_ioreq_server_destroy(uint32_t id) "id: %u" +xen_ioreq_server_state(uint32_t id, bool enable) "id: %u: enable: %i" +xen_map_mmio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64 +xen_unmap_mmio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64 +xen_map_portio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64 +xen_unmap_portio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64 +xen_map_pcidev(uint32_t id, uint8_t bus, uint8_t dev, uint8_t func) "id: %u bdf: %02x.%02x.%02x" +xen_unmap_pcidev(uint32_t id, uint8_t bus, uint8_t dev, uint8_t func) "id: %u bdf: %02x.%02x.%02x" # xen-mapcache.c xen_map_cache(uint64_t phys_addr) "want %#"PRIx64 |