From: Matt Fleming <matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
To: linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>,
Borislav Petkov <bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>,
Alan Cox <alan-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>,
Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>,
Matt Fleming
<matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: [PATCH 04/13] x86/efi: Delete dead code when checking for non-native
Date: Thu, 27 Feb 2014 19:50:51 +0000 [thread overview]
Message-ID: <1393530660-12692-5-git-send-email-matt@console-pimps.org> (raw)
In-Reply-To: <1393530660-12692-1-git-send-email-matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
From: Matt Fleming <matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Both efi_free_boot_services() and efi_enter_virtual_mode() are invoked
from init/main.c, but only if the EFI runtime services are available.
This is not the case for non-native boots, e.g. where a 64-bit kernel is
booted with 32-bit EFI firmware.
Delete the dead code.
Acked-by: Borislav Petkov <bp-l3A5Bk7waGM@public.gmane.org>
Signed-off-by: Matt Fleming <matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
arch/x86/platform/efi/efi.c | 21 ---------------------
1 file changed, 21 deletions(-)
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 0c8672b3f9a3..5f623f3bcbba 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -452,9 +452,6 @@ void __init efi_free_boot_services(void)
{
void *p;
- if (!efi_is_native())
- return;
-
for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
efi_memory_desc_t *md = p;
unsigned long long start = md->phys_addr;
@@ -979,15 +976,6 @@ static void __init kexec_enter_virtual_mode(void)
efi.systab = NULL;
/*
- * We don't do virtual mode, since we don't do runtime services, on
- * non-native EFI
- */
- if (!efi_is_native()) {
- efi_unmap_memmap();
- return;
- }
-
- /*
* Map efi regions which were passed via setup_data. The virt_addr is a
* fixed addr which was used in first kernel of a kexec boot.
*/
@@ -1066,15 +1054,6 @@ static void __init __efi_enter_virtual_mode(void)
efi.systab = NULL;
- /*
- * We don't do virtual mode, since we don't do runtime services, on
- * non-native EFI
- */
- if (!efi_is_native()) {
- efi_unmap_memmap();
- return;
- }
-
efi_merge_regions();
new_memmap = efi_map_regions(&count, &pg_shift);
if (!new_memmap) {
--
1.8.5.3
next prev parent reply other threads:[~2014-02-27 19:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-27 19:50 [PATCH 00/13] EFI mixed mode Matt Fleming
[not found] ` <1393530660-12692-1-git-send-email-matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2014-02-27 19:50 ` [PATCH 01/13] x86/boot: Cleanup header.S by removing some #ifdefs Matt Fleming
2014-02-27 19:50 ` [PATCH 02/13] x86, tools: Consolidate #ifdef code Matt Fleming
2014-02-27 19:50 ` [PATCH 03/13] x86/mm/pageattr: Always dump the right page table in an oops Matt Fleming
2014-02-27 19:50 ` Matt Fleming [this message]
2014-02-27 19:50 ` [PATCH 05/13] efi: Add separate 32-bit/64-bit definitions Matt Fleming
2014-02-27 19:50 ` [PATCH 06/13] x86/efi: Build our own EFI services pointer table Matt Fleming
[not found] ` <1393530660-12692-7-git-send-email-matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2014-02-27 20:09 ` H. Peter Anvin
[not found] ` <530F9B71.1030405-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2014-02-28 14:12 ` Matt Fleming
[not found] ` <20140228141206.GA17881-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2014-02-28 15:14 ` H. Peter Anvin
2014-02-27 19:50 ` [PATCH 07/13] x86/efi: Add early thunk code to go from 64-bit to 32-bit Matt Fleming
2014-02-27 19:50 ` [PATCH 08/13] x86/efi: Split the boot stub into 32/64 code paths Matt Fleming
2014-02-27 19:50 ` [PATCH 09/13] x86/efi: Firmware agnostic handover entry points Matt Fleming
2014-02-27 19:50 ` [PATCH 10/13] x86/efi: Add mixed runtime services support Matt Fleming
2014-02-27 19:50 ` [PATCH 11/13] x86/efi: Wire up CONFIG_EFI_MIXED Matt Fleming
2014-02-27 19:50 ` [PATCH 12/13] x86/boot: Don't overwrite cr4 when enabling PAE Matt Fleming
2014-02-27 19:51 ` [PATCH 13/13] x86/efi: Re-disable interrupts after calling firmware services Matt Fleming
-- strict thread matches above, loose matches on Subject: below --
2014-03-04 13:14 [PATCH v2 00/13] EFI mixed mode Matt Fleming
2014-03-04 13:14 ` [PATCH 04/13] x86/efi: Delete dead code when checking for non-native Matt Fleming
2014-02-27 19:46 [PATCH 00/13] EFI mixed mode Matt Fleming
[not found] ` <1393530404-12479-1-git-send-email-matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2014-02-27 19:46 ` [PATCH 04/13] x86/efi: Delete dead code when checking for non-native Matt Fleming
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