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From 53c7796e8ddc6aaaef79df8c852c0d9d151a8559 Mon Sep 17 00:00:00 2001
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From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
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Date: Fri, 10 May 2019 08:40:05 +0200
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Subject: [PATCH] Refuse to run on UEFI machines running older kernels
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Prior to kernel v3.12, the efi framebuffer driver was named "efifb".
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This cause problem on RHEL 7 as the base kernel is 3.10.
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"efi-framebuffer.0" was added by commit 2645e0aa for that reason
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(don't run on UEFI machine).
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The change from "efifb" to "efi-framebuffer" was done with commit
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e6816a8 in the kernel
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Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
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[ofourdan: updated commit message with commit references]
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Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
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---
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src/vesa.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/vesa.c b/src/vesa.c
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index 7f11175..0c1d003 100644
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--- a/src/vesa.c
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+++ b/src/vesa.c
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@@ -452,7 +452,8 @@ VESAPciProbe(DriverPtr drv, int entity_num, struct pci_device *dev,
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ScrnInfoPtr pScrn;
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#ifdef __linux__
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- if (access("/sys/devices/platform/efi-framebuffer.0", F_OK) == 0) {
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+ if (access("/sys/devices/platform/efi-framebuffer.0", F_OK) == 0 ||
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+ access("/sys/devices/platform/efifb.0", F_OK) == 0) {
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ErrorF("vesa: Refusing to run on UEFI\n");
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return FALSE;
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}
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--
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2.21.0
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