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grub2: avoid switching modes

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to reduce flickering during boot

Issue #2778
This commit is contained in:
Alexander Boettcher
2018-06-06 13:01:54 +02:00
committed by Christian Helmuth
parent a3999c93f4
commit 193e14a489
4 changed files with 13 additions and 4 deletions
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9
repos/base-nova/src/core/platform.cc
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@@ -490,11 +490,17 @@ Platform::Platform() :
Hip::Mem_desc *boot_fb = nullptr;
bool efi_boot = false;
/*
* All "available" ram must be added to our physical allocator before all
* non "available" regions that overlaps with ram get removed.
*/
for (unsigned i = 0; i < num_mem_desc; i++, mem_desc++) {
/* 32/64bit EFI image handle pointer - see multiboot spec 2 */
if (mem_desc->type == 20 || mem_desc->type == 19)
efi_boot = true;
if (mem_desc->type == Hip::Mem_desc::FRAMEBUFFER)
boot_fb = mem_desc;
if (mem_desc->type != Hip::Mem_desc::AVAILABLE_MEMORY) continue;
@@ -675,6 +681,9 @@ Platform::Platform() :
if (!boot_fb)
return;
if (!efi_boot)
return;
xml.node("framebuffer", [&] () {
xml.attribute("phys", String<32>(Hex(boot_fb->addr)));
xml.attribute("width", Resolution::Width::get(boot_fb->size));