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author | Peter Maydell <peter.maydell@linaro.org> | 2019-03-12 13:37:29 +0000 |
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committer | Peter Maydell <peter.maydell@linaro.org> | 2019-03-12 13:37:29 +0000 |
commit | 46316f1dfffc6be72e94e89f7b0e9162e7dcdcf1 (patch) | |
tree | 6e0e6dc9e24d4e8696faf53ba8030cde536e6eba | |
parent | a6d3c238034c8a90a0a2cee7814741ff1384e66f (diff) | |
parent | 8781c701445d83145ac1e69714e76a643f5525da (diff) | |
download | qemu-46316f1dfffc6be72e94e89f7b0e9162e7dcdcf1.zip qemu-46316f1dfffc6be72e94e89f7b0e9162e7dcdcf1.tar.gz qemu-46316f1dfffc6be72e94e89f7b0e9162e7dcdcf1.tar.bz2 |
Merge remote-tracking branch 'remotes/awilliam/tags/vfio-updates-20190311.0' into staging
VFIO updates 2019-03-11
- Resolution support for mdev displays supporting EDID interface
(Gerd Hoffmann)
# gpg: Signature made Mon 11 Mar 2019 19:17:39 GMT
# gpg: using RSA key 239B9B6E3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>" [full]
# gpg: aka "Alex Williamson <alex@shazbot.org>" [full]
# gpg: aka "Alex Williamson <alwillia@redhat.com>" [full]
# gpg: aka "Alex Williamson <alex.l.williamson@gmail.com>" [full]
# Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B 8A90 239B 9B6E 3BB0 8B22
* remotes/awilliam/tags/vfio-updates-20190311.0:
vfio/display: delay link up event
vfio/display: add xres + yres properties
vfio/display: add edid support.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r-- | hw/vfio/display.c | 169 | ||||
-rw-r--r-- | hw/vfio/pci.c | 12 | ||||
-rw-r--r-- | hw/vfio/pci.h | 2 | ||||
-rw-r--r-- | hw/vfio/trace-events | 7 | ||||
-rw-r--r-- | include/hw/vfio/vfio-common.h | 4 |
5 files changed, 194 insertions, 0 deletions
diff --git a/hw/vfio/display.c b/hw/vfio/display.c index dead30e..a3d9c8f 100644 --- a/hw/vfio/display.c +++ b/hw/vfio/display.c @@ -15,15 +15,181 @@ #include <sys/ioctl.h> #include "sysemu/sysemu.h" +#include "hw/display/edid.h" #include "ui/console.h" #include "qapi/error.h" #include "pci.h" +#include "trace.h" #ifndef DRM_PLANE_TYPE_PRIMARY # define DRM_PLANE_TYPE_PRIMARY 1 # define DRM_PLANE_TYPE_CURSOR 2 #endif +#define pread_field(_fd, _reg, _ptr, _fld) \ + (sizeof(_ptr->_fld) != \ + pread(_fd, &(_ptr->_fld), sizeof(_ptr->_fld), \ + _reg->offset + offsetof(typeof(*_ptr), _fld))) + +#define pwrite_field(_fd, _reg, _ptr, _fld) \ + (sizeof(_ptr->_fld) != \ + pwrite(_fd, &(_ptr->_fld), sizeof(_ptr->_fld), \ + _reg->offset + offsetof(typeof(*_ptr), _fld))) + + +static void vfio_display_edid_link_up(void *opaque) +{ + VFIOPCIDevice *vdev = opaque; + VFIODisplay *dpy = vdev->dpy; + int fd = vdev->vbasedev.fd; + + dpy->edid_regs->link_state = VFIO_DEVICE_GFX_LINK_STATE_UP; + if (pwrite_field(fd, dpy->edid_info, dpy->edid_regs, link_state)) { + goto err; + } + trace_vfio_display_edid_link_up(); + return; + +err: + trace_vfio_display_edid_write_error(); +} + +static void vfio_display_edid_update(VFIOPCIDevice *vdev, bool enabled, + int prefx, int prefy) +{ + VFIODisplay *dpy = vdev->dpy; + int fd = vdev->vbasedev.fd; + qemu_edid_info edid = { + .maxx = dpy->edid_regs->max_xres, + .maxy = dpy->edid_regs->max_yres, + .prefx = prefx ?: vdev->display_xres, + .prefy = prefy ?: vdev->display_yres, + }; + + timer_del(dpy->edid_link_timer); + dpy->edid_regs->link_state = VFIO_DEVICE_GFX_LINK_STATE_DOWN; + if (pwrite_field(fd, dpy->edid_info, dpy->edid_regs, link_state)) { + goto err; + } + trace_vfio_display_edid_link_down(); + + if (!enabled) { + return; + } + + if (edid.maxx && edid.prefx > edid.maxx) { + edid.prefx = edid.maxx; + } + if (edid.maxy && edid.prefy > edid.maxy) { + edid.prefy = edid.maxy; + } + qemu_edid_generate(dpy->edid_blob, + dpy->edid_regs->edid_max_size, + &edid); + trace_vfio_display_edid_update(edid.prefx, edid.prefy); + + dpy->edid_regs->edid_size = qemu_edid_size(dpy->edid_blob); + if (pwrite_field(fd, dpy->edid_info, dpy->edid_regs, edid_size)) { + goto err; + } + if (pwrite(fd, dpy->edid_blob, dpy->edid_regs->edid_size, + dpy->edid_info->offset + dpy->edid_regs->edid_offset) + != dpy->edid_regs->edid_size) { + goto err; + } + + timer_mod(dpy->edid_link_timer, + qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 100); + return; + +err: + trace_vfio_display_edid_write_error(); + return; +} + +static int vfio_display_edid_ui_info(void *opaque, uint32_t idx, + QemuUIInfo *info) +{ + VFIOPCIDevice *vdev = opaque; + VFIODisplay *dpy = vdev->dpy; + + if (!dpy->edid_regs) { + return 0; + } + + if (info->width && info->height) { + vfio_display_edid_update(vdev, true, info->width, info->height); + } else { + vfio_display_edid_update(vdev, false, 0, 0); + } + + return 0; +} + +static void vfio_display_edid_init(VFIOPCIDevice *vdev) +{ + VFIODisplay *dpy = vdev->dpy; + int fd = vdev->vbasedev.fd; + int ret; + + ret = vfio_get_dev_region_info(&vdev->vbasedev, + VFIO_REGION_TYPE_GFX, + VFIO_REGION_SUBTYPE_GFX_EDID, + &dpy->edid_info); + if (ret) { + return; + } + + trace_vfio_display_edid_available(); + dpy->edid_regs = g_new0(struct vfio_region_gfx_edid, 1); + if (pread_field(fd, dpy->edid_info, dpy->edid_regs, edid_offset)) { + goto err; + } + if (pread_field(fd, dpy->edid_info, dpy->edid_regs, edid_max_size)) { + goto err; + } + if (pread_field(fd, dpy->edid_info, dpy->edid_regs, max_xres)) { + goto err; + } + if (pread_field(fd, dpy->edid_info, dpy->edid_regs, max_yres)) { + goto err; + } + + dpy->edid_blob = g_malloc0(dpy->edid_regs->edid_max_size); + + /* if xres + yres properties are unset use the maximum resolution */ + if (!vdev->display_xres) { + vdev->display_xres = dpy->edid_regs->max_xres; + } + if (!vdev->display_yres) { + vdev->display_yres = dpy->edid_regs->max_yres; + } + + dpy->edid_link_timer = timer_new_ms(QEMU_CLOCK_REALTIME, + vfio_display_edid_link_up, vdev); + + vfio_display_edid_update(vdev, true, 0, 0); + return; + +err: + trace_vfio_display_edid_write_error(); + g_free(dpy->edid_regs); + dpy->edid_regs = NULL; + return; +} + +static void vfio_display_edid_exit(VFIODisplay *dpy) +{ + if (!dpy->edid_regs) { + return; + } + + g_free(dpy->edid_regs); + g_free(dpy->edid_blob); + timer_del(dpy->edid_link_timer); + timer_free(dpy->edid_link_timer); +} + static void vfio_display_update_cursor(VFIODMABuf *dmabuf, struct vfio_device_gfx_plane_info *plane) { @@ -171,6 +337,7 @@ static void vfio_display_dmabuf_update(void *opaque) static const GraphicHwOps vfio_display_dmabuf_ops = { .gfx_update = vfio_display_dmabuf_update, + .ui_info = vfio_display_edid_ui_info, }; static int vfio_display_dmabuf_init(VFIOPCIDevice *vdev, Error **errp) @@ -187,6 +354,7 @@ static int vfio_display_dmabuf_init(VFIOPCIDevice *vdev, Error **errp) if (vdev->enable_ramfb) { vdev->dpy->ramfb = ramfb_setup(errp); } + vfio_display_edid_init(vdev); return 0; } @@ -366,5 +534,6 @@ void vfio_display_finalize(VFIOPCIDevice *vdev) graphic_console_close(vdev->dpy->con); vfio_display_dmabuf_exit(vdev->dpy); vfio_display_region_exit(vdev->dpy); + vfio_display_edid_exit(vdev->dpy); g_free(vdev->dpy); } diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index dd12f36..504019c 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3068,6 +3068,16 @@ static void vfio_realize(PCIDevice *pdev, Error **errp) error_setg(errp, "ramfb=on requires display=on"); goto out_teardown; } + if (vdev->display_xres || vdev->display_yres) { + if (vdev->dpy == NULL) { + error_setg(errp, "xres and yres properties require display=on"); + goto out_teardown; + } + if (vdev->dpy->edid_regs == NULL) { + error_setg(errp, "xres and yres properties need edid support"); + goto out_teardown; + } + } vfio_register_err_notifier(vdev); vfio_register_req_notifier(vdev); @@ -3182,6 +3192,8 @@ static Property vfio_pci_dev_properties[] = { DEFINE_PROP_STRING("sysfsdev", VFIOPCIDevice, vbasedev.sysfsdev), DEFINE_PROP_ON_OFF_AUTO("display", VFIOPCIDevice, display, ON_OFF_AUTO_OFF), + DEFINE_PROP_UINT32("xres", VFIOPCIDevice, display_xres, 0), + DEFINE_PROP_UINT32("yres", VFIOPCIDevice, display_yres, 0), DEFINE_PROP_UINT32("x-intx-mmap-timeout-ms", VFIOPCIDevice, intx.mmap_timeout, 1100), DEFINE_PROP_BIT("x-vga", VFIOPCIDevice, features, diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h index b1ae4c0..c11c3f1 100644 --- a/hw/vfio/pci.h +++ b/hw/vfio/pci.h @@ -149,6 +149,8 @@ typedef struct VFIOPCIDevice { #define VFIO_FEATURE_ENABLE_IGD_OPREGION \ (1 << VFIO_FEATURE_ENABLE_IGD_OPREGION_BIT) OnOffAuto display; + uint32_t display_xres; + uint32_t display_yres; int32_t bootindex; uint32_t igd_gms; OffAutoPCIBAR msix_relo; diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events index cf1e886..2201972 100644 --- a/hw/vfio/trace-events +++ b/hw/vfio/trace-events @@ -132,3 +132,10 @@ vfio_prereg_unregister(uint64_t va, uint64_t size, int ret) "va=0x%"PRIx64" size vfio_spapr_create_window(int ps, unsigned int levels, uint64_t ws, uint64_t off) "pageshift=0x%x levels=%u winsize=0x%"PRIx64" offset=0x%"PRIx64 vfio_spapr_remove_window(uint64_t off) "offset=0x%"PRIx64 vfio_spapr_group_attach(int groupfd, int tablefd) "Attached groupfd %d to liobn fd %d" + +# hw/vfio/display.c +vfio_display_edid_available(void) "" +vfio_display_edid_link_up(void) "" +vfio_display_edid_link_down(void) "" +vfio_display_edid_update(uint32_t prefx, uint32_t prefy) "%ux%u" +vfio_display_edid_write_error(void) "" diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index fbf0966..1155b79 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -148,6 +148,10 @@ typedef struct VFIODMABuf { typedef struct VFIODisplay { QemuConsole *con; RAMFBState *ramfb; + struct vfio_region_info *edid_info; + struct vfio_region_gfx_edid *edid_regs; + uint8_t *edid_blob; + QEMUTimer *edid_link_timer; struct { VFIORegion buffer; DisplaySurface *surface; |