i440fx-test: add test for PAM functionality
This tests PAM settings for the i440fx. This test does a lot of byte MMIO which is fairly slow with qtest today. But the test does complete in under 2 seconds. We don't fully emulate PAM largely because of limitations with KVM so we #if 0 that part of the test case. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Message-id: 1366123521-4330-7-git-send-email-aliguori@us.ibm.com
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Anthony Liguori
parent
9bda413c96
commit
a875711af9
@ -17,10 +17,12 @@
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#include "hw/pci/pci_regs.h"
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#include <glib.h>
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#include <stdio.h>
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#include <string.h>
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#define BROKEN 1
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#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
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typedef struct TestData
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{
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int num_cpus;
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@ -119,6 +121,139 @@ static void test_i440fx_defaults(gconstpointer opaque)
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g_assert_cmpint(qpci_config_readb(dev, 0x93), ==, 0x00); /* TRC */
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}
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#define PAM_RE 1
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#define PAM_WE 2
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static void pam_set(QPCIDevice *dev, int index, int flags)
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{
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int regno = 0x59 + (index / 2);
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uint8_t reg;
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reg = qpci_config_readb(dev, regno);
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if (index & 1) {
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reg = (reg & 0x0F) | (flags << 4);
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} else {
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reg = (reg & 0xF0) | flags;
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}
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qpci_config_writeb(dev, regno, reg);
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}
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static gboolean verify_area(uint32_t start, uint32_t end, uint8_t value)
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{
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uint32_t size = end - start + 1;
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gboolean ret = TRUE;
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uint8_t *data;
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int i;
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data = g_malloc0(size);
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memread(start, data, size);
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g_test_message("verify_area: data[0] = 0x%x", data[0]);
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for (i = 0; i < size; i++) {
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if (data[i] != value) {
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ret = FALSE;
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break;
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}
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}
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g_free(data);
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return ret;
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}
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static void write_area(uint32_t start, uint32_t end, uint8_t value)
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{
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uint32_t size = end - start + 1;
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uint8_t *data;
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data = g_malloc0(size);
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memset(data, value, size);
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memwrite(start, data, size);
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g_free(data);
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}
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static void test_i440fx_pam(gconstpointer opaque)
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{
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const TestData *s = opaque;
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QPCIDevice *dev;
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int i;
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static struct {
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uint32_t start;
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uint32_t end;
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} pam_area[] = {
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{ 0, 0 }, /* Reserved */
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{ 0xF0000, 0xFFFFF }, /* BIOS Area */
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{ 0xC0000, 0xC3FFF }, /* Option ROM */
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{ 0xC4000, 0xC7FFF }, /* Option ROM */
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{ 0xC8000, 0xCBFFF }, /* Option ROM */
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{ 0xCC000, 0xCFFFF }, /* Option ROM */
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{ 0xD0000, 0xD3FFF }, /* Option ROM */
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{ 0xD4000, 0xD7FFF }, /* Option ROM */
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{ 0xD8000, 0xDBFFF }, /* Option ROM */
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{ 0xDC000, 0xDFFFF }, /* Option ROM */
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{ 0xE0000, 0xE3FFF }, /* BIOS Extension */
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{ 0xE4000, 0xE7FFF }, /* BIOS Extension */
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{ 0xE8000, 0xEBFFF }, /* BIOS Extension */
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{ 0xEC000, 0xEFFFF }, /* BIOS Extension */
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};
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dev = qpci_device_find(s->bus, QPCI_DEVFN(0, 0));
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g_assert(dev != NULL);
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for (i = 0; i < ARRAY_SIZE(pam_area); i++) {
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if (pam_area[i].start == pam_area[i].end) {
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continue;
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}
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g_test_message("Checking area 0x%05x..0x%05x",
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pam_area[i].start, pam_area[i].end);
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/* Switch to RE for the area */
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pam_set(dev, i, PAM_RE);
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/* Verify the RAM is all zeros */
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g_assert(verify_area(pam_area[i].start, pam_area[i].end, 0));
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/* Switch to WE for the area */
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pam_set(dev, i, PAM_RE | PAM_WE);
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/* Write out a non-zero mask to the full area */
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write_area(pam_area[i].start, pam_area[i].end, 0x42);
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#ifndef BROKEN
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/* QEMU only supports a limited form of PAM */
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/* Switch to !RE for the area */
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pam_set(dev, i, PAM_WE);
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/* Verify the area is not our mask */
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g_assert(!verify_area(pam_area[i].start, pam_area[i].end, 0x42));
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#endif
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/* Verify the area is our new mask */
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g_assert(verify_area(pam_area[i].start, pam_area[i].end, 0x42));
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/* Write out a new mask */
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write_area(pam_area[i].start, pam_area[i].end, 0x82);
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#ifndef BROKEN
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/* QEMU only supports a limited form of PAM */
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/* Verify the area is not our mask */
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g_assert(!verify_area(pam_area[i].start, pam_area[i].end, 0x82));
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/* Switch to RE for the area */
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pam_set(dev, i, PAM_RE | PAM_WE);
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#endif
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/* Verify the area is our new mask */
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g_assert(verify_area(pam_area[i].start, pam_area[i].end, 0x82));
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/* Reset area */
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pam_set(dev, i, 0);
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/* Verify the area is not our new mask */
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g_assert(!verify_area(pam_area[i].start, pam_area[i].end, 0x82));
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}
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}
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int main(int argc, char **argv)
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{
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QTestState *s;
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@ -137,6 +272,8 @@ int main(int argc, char **argv)
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data.bus = qpci_init_pc();
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g_test_add_data_func("/i440fx/defaults", &data, test_i440fx_defaults);
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g_test_add_data_func("/i440fx/pam", &data, test_i440fx_pam);
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ret = g_test_run();
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