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Jan Beulich
3fa7fb8b86
With hvmloader telling the guest that it may skip REG_C reads during the processing of RTC interrupts, the emulation code must not depend upon these reads to occur. Introduce two modes of operation for the emulation code, and short of a HVM parameter (too late to be introduced for 4.3) hard code the mode determination to always assume that Windows-conforming one for the time being. Signed-off-by: Jan Beulich <jbeulich@suse.com> Tested-by: Roger Pau Monné <roger.pau@citrix.com> (FreeBSD guest)
172 lines
5.4 KiB
C
172 lines
5.4 KiB
C
/*
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* Copyright (c) 2004, Intel Corporation.
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* Copyright (c) 2006, Keir Fraser, XenSource Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*/
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#include "acpi2_0.h"
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#include "../config.h"
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/*
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* Firmware ACPI Control Structure (FACS).
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*/
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struct acpi_20_facs Facs = {
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.signature = ACPI_2_0_FACS_SIGNATURE,
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.length = sizeof(struct acpi_20_facs),
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.version = ACPI_2_0_FACS_VERSION
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};
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/*
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* Fixed ACPI Description Table (FADT).
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*/
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#define ACPI_PM1A_EVT_BLK_BIT_WIDTH 0x20
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#define ACPI_PM1A_EVT_BLK_BIT_OFFSET 0x00
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#define ACPI_PM1A_CNT_BLK_BIT_WIDTH 0x10
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#define ACPI_PM1A_CNT_BLK_BIT_OFFSET 0x00
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#define ACPI_PM_TMR_BLK_BIT_WIDTH 0x20
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#define ACPI_PM_TMR_BLK_BIT_OFFSET 0x00
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struct acpi_20_fadt Fadt = {
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.header = {
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.signature = ACPI_2_0_FADT_SIGNATURE,
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.length = sizeof(struct acpi_20_fadt),
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.revision = ACPI_2_0_FADT_REVISION,
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.oem_id = ACPI_OEM_ID,
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.oem_table_id = ACPI_OEM_TABLE_ID,
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.oem_revision = ACPI_OEM_REVISION,
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.creator_id = ACPI_CREATOR_ID,
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.creator_revision = ACPI_CREATOR_REVISION
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},
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.sci_int = 9,
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.pm1a_evt_blk = ACPI_PM1A_EVT_BLK_ADDRESS_V1,
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.pm1a_cnt_blk = ACPI_PM1A_CNT_BLK_ADDRESS_V1,
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.pm_tmr_blk = ACPI_PM_TMR_BLK_ADDRESS_V1,
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.gpe0_blk = ACPI_GPE0_BLK_ADDRESS_V1,
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.pm1_evt_len = ACPI_PM1A_EVT_BLK_BIT_WIDTH / 8,
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.pm1_cnt_len = ACPI_PM1A_CNT_BLK_BIT_WIDTH / 8,
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.pm_tmr_len = ACPI_PM_TMR_BLK_BIT_WIDTH / 8,
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.gpe0_blk_len = ACPI_GPE0_BLK_LEN_V1,
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.p_lvl2_lat = 0x0fff, /* >100, means we do not support C2 state */
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.p_lvl3_lat = 0x0fff, /* >1000, means we do not support C3 state */
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.iapc_boot_arch = ACPI_8042,
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.flags = (ACPI_PROC_C1 |
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ACPI_WBINVD |
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ACPI_FIX_RTC | ACPI_TMR_VAL_EXT |
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ACPI_USE_PLATFORM_CLOCK),
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.reset_reg = {
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.address_space_id = ACPI_SYSTEM_IO,
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.register_bit_width = 8, /* *must* be 8 */
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.register_bit_offset = 0, /* *must* be 0 */
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.address = 0xcf9
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},
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.reset_value = 6,
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.x_pm1a_evt_blk = {
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.address_space_id = ACPI_SYSTEM_IO,
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.register_bit_width = ACPI_PM1A_EVT_BLK_BIT_WIDTH,
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.register_bit_offset = ACPI_PM1A_EVT_BLK_BIT_OFFSET,
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.address = ACPI_PM1A_EVT_BLK_ADDRESS_V1,
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},
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.x_pm1a_cnt_blk = {
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.address_space_id = ACPI_SYSTEM_IO,
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.register_bit_width = ACPI_PM1A_CNT_BLK_BIT_WIDTH,
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.register_bit_offset = ACPI_PM1A_CNT_BLK_BIT_OFFSET,
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.address = ACPI_PM1A_CNT_BLK_ADDRESS_V1,
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},
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.x_pm_tmr_blk = {
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.address_space_id = ACPI_SYSTEM_IO,
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.register_bit_width = ACPI_PM_TMR_BLK_BIT_WIDTH,
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.register_bit_offset = ACPI_PM_TMR_BLK_BIT_OFFSET,
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.address = ACPI_PM_TMR_BLK_ADDRESS_V1,
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}
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};
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struct acpi_20_rsdt Rsdt = {
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.header = {
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.signature = ACPI_2_0_RSDT_SIGNATURE,
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.length = sizeof(struct acpi_header),
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.revision = ACPI_2_0_RSDT_REVISION,
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.oem_id = ACPI_OEM_ID,
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.oem_table_id = ACPI_OEM_TABLE_ID,
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.oem_revision = ACPI_OEM_REVISION,
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.creator_id = ACPI_CREATOR_ID,
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.creator_revision = ACPI_CREATOR_REVISION
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}
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};
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struct acpi_20_xsdt Xsdt = {
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.header = {
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.signature = ACPI_2_0_XSDT_SIGNATURE,
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.length = sizeof(struct acpi_header),
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.revision = ACPI_2_0_XSDT_REVISION,
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.oem_id = ACPI_OEM_ID,
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.oem_table_id = ACPI_OEM_TABLE_ID,
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.oem_revision = ACPI_OEM_REVISION,
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.creator_id = ACPI_CREATOR_ID,
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.creator_revision = ACPI_CREATOR_REVISION
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}
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};
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struct acpi_20_rsdp Rsdp = {
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.signature = ACPI_2_0_RSDP_SIGNATURE,
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.oem_id = ACPI_OEM_ID,
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.revision = ACPI_2_0_RSDP_REVISION,
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.length = sizeof(struct acpi_20_rsdp)
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};
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#define ACPI_WAET_RTC_NO_ACK (1<<0) /* RTC requires no int acknowledge */
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#define ACPI_WAET_TIMER_ONE_READ (1<<1) /* PM timer requires only one read */
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/*
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* The state of the RTC flag getting passed to the guest must be in
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* sync with the mode selection in the hypervisor RTC emulation code.
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*/
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#define ACPI_WAET_FLAGS (ACPI_WAET_RTC_NO_ACK | \
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ACPI_WAET_TIMER_ONE_READ)
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struct acpi_20_waet Waet = {
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.header = {
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.signature = ACPI_2_0_WAET_SIGNATURE,
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.length = sizeof(struct acpi_20_waet),
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.revision = ACPI_2_0_WAET_REVISION,
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.oem_id = ACPI_OEM_ID,
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.oem_table_id = ACPI_OEM_TABLE_ID,
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.oem_revision = ACPI_OEM_REVISION,
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.creator_id = ACPI_CREATOR_ID,
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.creator_revision = ACPI_CREATOR_REVISION
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},
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.flags = ACPI_WAET_FLAGS
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};
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/*
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* Local variables:
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* mode: C
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* c-file-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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