67 lines
2.0 KiB
Diff
67 lines
2.0 KiB
Diff
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From 8730a9587670ebd5f7cb14d6bd5e4c7d4003a71d Mon Sep 17 00:00:00 2001
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From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
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Date: Wed, 17 Apr 2013 19:05:57 +0200
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Subject: [PATCH 321/364] * grub-core/disk/efi/efidisk.c: Detect
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floppies by ACPI ID. It improves performance in qemu.
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---
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ChangeLog | 5 +++++
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grub-core/disk/efi/efidisk.c | 18 ++++++++++++++----
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2 files changed, 19 insertions(+), 4 deletions(-)
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diff --git a/ChangeLog b/ChangeLog
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index 073207a..9d77a7f 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,5 +1,10 @@
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2013-04-17 Vladimir Serbinenko <phcoder@gmail.com>
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+ * grub-core/disk/efi/efidisk.c: Detect floppies by ACPI ID.
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+ It improves performance in qemu.
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+
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+2013-04-17 Vladimir Serbinenko <phcoder@gmail.com>
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+
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* build-aux/snippet: Add missing gnulib files.
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2013-04-16 Andrey Borzenkov <arvidjaar@gmail.com>
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diff --git a/grub-core/disk/efi/efidisk.c b/grub-core/disk/efi/efidisk.c
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index 0e08d3b..e168d07 100644
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--- a/grub-core/disk/efi/efidisk.c
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+++ b/grub-core/disk/efi/efidisk.c
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@@ -329,18 +329,28 @@ name_devices (struct grub_efidisk_data *devices)
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{
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grub_efi_device_path_t *dp;
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grub_efi_block_io_media_t *m;
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+ int is_floppy = 0;
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dp = d->last_device_path;
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if (! dp)
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continue;
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m = d->block_io->media;
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- if (m->logical_partition)
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+ if (GRUB_EFI_DEVICE_PATH_TYPE (dp) == GRUB_EFI_ACPI_DEVICE_PATH_TYPE
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+ && GRUB_EFI_DEVICE_PATH_SUBTYPE (dp)
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+ == GRUB_EFI_ACPI_DEVICE_PATH_SUBTYPE)
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+ {
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+ grub_efi_acpi_device_path_t *acpi
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+ = (grub_efi_acpi_device_path_t *) dp;
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+ /* Floppy EISA ID. */
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+ if (acpi->hid == 0x60441d0 || acpi->hid == 0x70041d0
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+ || acpi->hid == 0x70141d1)
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+ is_floppy = 1;
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+ }
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+ if (is_floppy)
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{
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- /* Only one partition in a non-media device. Assume that this
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- is a floppy drive. */
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#ifdef DEBUG_NAMES
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- grub_printf ("adding a floppy by guessing: ");
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+ grub_printf ("adding a floppy: ");
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grub_efi_print_device_path (d->device_path);
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#endif
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add_device (&fd_devices, d);
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--
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1.8.1.4
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