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Roger Pau Monné
79f9ba7838
Don't allow the hardware domain write access the PCI config space of devices marked as read-only. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Jan Beulich <jbeulich@suse.com>
138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/*
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* Unit tests for the generic vPCI handler code.
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*
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* Copyright (C) 2017 Citrix Systems R&D
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms and conditions of the GNU General Public
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* License, version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TEST_VPCI_
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#define _TEST_VPCI_
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#include <assert.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define container_of(ptr, type, member) ({ \
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typeof(((type *)0)->member) *mptr = (ptr); \
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\
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(type *)((char *)mptr - offsetof(type, member)); \
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})
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#define smp_wmb()
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#define prefetch(x) __builtin_prefetch(x)
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#define ASSERT(x) assert(x)
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#define __must_check __attribute__((__warn_unused_result__))
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#include "list.h"
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struct domain {
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};
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struct pci_dev {
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struct vpci *vpci;
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};
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struct vcpu
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{
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const struct domain *domain;
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};
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extern const struct vcpu *current;
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extern const struct pci_dev test_pdev;
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typedef bool spinlock_t;
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#define spin_lock_init(l) (*(l) = false)
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#define spin_lock(l) (*(l) = true)
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#define spin_unlock(l) (*(l) = false)
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typedef union {
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uint32_t sbdf;
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struct {
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union {
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uint16_t bdf;
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struct {
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union {
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struct {
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uint8_t func : 3,
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dev : 5;
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};
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uint8_t extfunc;
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};
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uint8_t bus;
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};
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};
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uint16_t seg;
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};
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} pci_sbdf_t;
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#define CONFIG_HAS_VPCI
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#include "vpci.h"
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#define __hwdom_init
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#define has_vpci(d) true
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#define xzalloc(type) ((type *)calloc(1, sizeof(type)))
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#define xmalloc(type) ((type *)malloc(sizeof(type)))
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#define xfree(p) free(p)
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#define pci_get_pdev_by_domain(...) &test_pdev
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#define pci_get_ro_map(...) NULL
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#define test_bit(...) false
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/* Dummy native helpers. Writes are ignored, reads return 1's. */
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#define pci_conf_read8(...) 0xff
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#define pci_conf_read16(...) 0xffff
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#define pci_conf_read32(...) 0xffffffff
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#define pci_conf_write8(...)
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#define pci_conf_write16(...)
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#define pci_conf_write32(...)
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#define PCI_CFG_SPACE_EXP_SIZE 4096
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#define BUG() assert(0)
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#define ASSERT_UNREACHABLE() assert(0)
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#define min(x, y) ({ \
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const typeof(x) tx = (x); \
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const typeof(y) ty = (y); \
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\
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(void) (&tx == &ty); \
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tx < ty ? tx : ty; \
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})
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#define max(x, y) ({ \
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const typeof(x) tx = (x); \
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const typeof(y) ty = (y); \
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\
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(void) (&tx == &ty); \
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tx > ty ? tx : ty; \
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})
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#endif
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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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* indent-tabs-mode: nil
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* End:
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*/
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