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From aa98e5248b83b5eed5230e582a21156373d9fc72 Mon Sep 17 00:00:00 2001
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From: Laszlo Ersek <lersek@redhat.com>
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Date: Wed, 13 Aug 2014 07:59:41 +0200
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Subject: [PATCH 04/11] acpi: fix tables for no-hpet configuration
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Message-id: <1407916781-22610-2-git-send-email-lersek@redhat.com>
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Patchwork-id: 60549
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O-Subject: [RHEL-7.1 qemu-kvm PATCH 1/1] acpi: fix tables for no-hpet configuration
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Bugzilla: 1129552
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
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RH-Acked-by: Marcel Apfelbaum <marcel.a@redhat.com>
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From: "Michael S. Tsirkin" <mst@redhat.com>
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acpi build tried to add offset of hpet table to rsdt even when hpet was
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disabled. If no tables follow hpet, this could lead to a malformed
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rsdt.
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Fix it up.
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To avoid such errors in the future, rearrange code slightly to make it
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clear that acpi_add_table stores the offset of the following table - not
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of the previous one.
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Reported-by: TeLeMan <geleman@gmail.com>
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Cc: qemu-stable@nongnu.org
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(cherry picked from commit 9ac1c4c07e7e6ab16a3e2149e9b32c0d092cb3f5)
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Signed-off-by: Laszlo Ersek <lersek@redhat.com>
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---
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hw/i386/acpi-build.c | 7 ++++---
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1 file changed, 4 insertions(+), 3 deletions(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/i386/acpi-build.c | 7 ++++---
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1 files changed, 4 insertions(+), 3 deletions(-)
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diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
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index 33012c9..8be1286 100644
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--- a/hw/i386/acpi-build.c
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+++ b/hw/i386/acpi-build.c
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@@ -1076,15 +1076,16 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables)
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/* ACPI tables pointed to by RSDT */
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acpi_add_table(table_offsets, tables->table_data);
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build_fadt(tables->table_data, tables->linker, &pm, facs, dsdt);
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- acpi_add_table(table_offsets, tables->table_data);
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+ acpi_add_table(table_offsets, tables->table_data);
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build_ssdt(tables->table_data, tables->linker, &cpu, &pm, &misc, &pci,
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guest_info);
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- acpi_add_table(table_offsets, tables->table_data);
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- build_madt(tables->table_data, tables->linker, &cpu, guest_info);
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acpi_add_table(table_offsets, tables->table_data);
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+ build_madt(tables->table_data, tables->linker, &cpu, guest_info);
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+
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if (misc.has_hpet) {
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+ acpi_add_table(table_offsets, tables->table_data);
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build_hpet(tables->table_data, tables->linker);
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}
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if (guest_info->numa_nodes) {
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--
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1.7.1
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