1 files changed, 20 insertions, 14 deletions

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index b3e0227df2c9..c760e073963e 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -276,8 +276,9 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
         nr_gops = size / sizeof(void *);
         for (i = 0; i < nr_gops; i++) {
                 struct efi_graphics_output_mode_info *info;
-                efi_guid_t pciio_proto = EFI_PCI_IO_PROTOCOL_GUID;
-                void *pciio;
+                efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID;
+                bool conout_found = false;
+                void *dummy;
                 void *h = gop_handle[i];
 
                 status = efi_call_phys3(sys_table->boottime->handle_protocol,
@@ -285,19 +286,21 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
                 if (status != EFI_SUCCESS)
                         continue;
 
-                efi_call_phys3(sys_table->boottime->handle_protocol,
-                               h, &pciio_proto, &pciio);
+                status = efi_call_phys3(sys_table->boottime->handle_protocol,
+                                        h, &conout_proto, &dummy);
+
+                if (status == EFI_SUCCESS)
+                        conout_found = true;
 
                 status = efi_call_phys4(gop->query_mode, gop,
                                         gop->mode->mode, &size, &info);
-                if (status == EFI_SUCCESS && (!first_gop || pciio)) {
+                if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
                         /*
-                         * Apple provide GOPs that are not backed by
-                         * real hardware (they're used to handle
-                         * multiple displays). The workaround is to
-                         * search for a GOP implementing the PCIIO
-                         * protocol, and if one isn't found, to just
-                         * fallback to the first GOP.
+                         * Systems that use the UEFI Console Splitter may
+                         * provide multiple GOP devices, not all of which are
+                         * backed by real hardware. The workaround is to search
+                         * for a GOP implementing the ConOut protocol, and if
+                         * one isn't found, to just fall back to the first GOP.
                          */
                         width = info->horizontal_resolution;
                         height = info->vertical_resolution;
@@ -308,10 +311,10 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
                         pixels_per_scan_line = info->pixels_per_scan_line;
 
                         /*
-                         * Once we've found a GOP supporting PCIIO,
+                         * Once we've found a GOP supporting ConOut,
                          * don't bother looking any further.
                          */
-                        if (pciio)
+                        if (conout_found)
                                 break;
 
                         first_gop = gop;
@@ -328,7 +331,6 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
         si->lfb_width = width;
         si->lfb_height = height;
         si->lfb_base = fb_base;
-        si->lfb_size = fb_size;
         si->pages = 1;
 
         if (pixel_format == PIXEL_RGB_RESERVED_8BIT_PER_COLOR) {
@@ -376,6 +378,10 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
                 si->rsvd_pos = 0;
         }
 
+        si->lfb_size = si->lfb_linelength * si->lfb_height;
+
+        si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS;
+
 free_handle:
         efi_call_phys1(sys_table->boottime->free_pool, gop_handle);
         return status;