Re: [PATCH v2 09/14] arm64: Enable memory encrypt for Realms

From: kernel test robot
Date: Sun Apr 14 2024 - 23:14:21 EST

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In reply to: Steven Price: "[PATCH v2 09/14] arm64: Enable memory encrypt for Realms"
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Hi Steven,

kernel test robot noticed the following build errors:

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on kvmarm/next efi/next tip/irq/core linus/master v6.9-rc3 next-20240412]
[cannot apply to arnd-asm-generic/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Steven-Price/arm64-rsi-Add-RSI-definitions/20240412-164852
base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link: https://lore.kernel.org/r/20240412084213.1733764-10-steven.price%40arm.com
patch subject: [PATCH v2 09/14] arm64: Enable memory encrypt for Realms
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20240415/202404151003.vkNApJiS-lkp@xxxxxxxxx/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 8b3b4a92adee40483c27f26c478a384cd69c6f05)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240415/202404151003.vkNApJiS-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202404151003.vkNApJiS-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

In file included from drivers/hv/hv.c:13:
In file included from include/linux/mm.h:2208:
include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
509 | item];
| ~~~~
include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
516 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
528 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
537 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/hv/hv.c:132:10: error: call to undeclared function 'set_memory_decrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
132 | ret = set_memory_decrypted((unsigned long)hv_cpu->post_msg_page, 1);
| ^
drivers/hv/hv.c:168:10: error: call to undeclared function 'set_memory_decrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
168 | ret = set_memory_decrypted((unsigned long)
| ^
>> drivers/hv/hv.c:218:11: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
218 | ret = set_memory_encrypted((unsigned long)
| ^
drivers/hv/hv.c:230:11: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
230 | ret = set_memory_encrypted((unsigned long)
| ^
drivers/hv/hv.c:239:11: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
239 | ret = set_memory_encrypted((unsigned long)
| ^
5 warnings and 5 errors generated.
--
In file included from drivers/hv/connection.c:16:
In file included from include/linux/mm.h:2208:
include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
509 | item];
| ~~~~
include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
516 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
528 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
537 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/hv/connection.c:236:8: error: call to undeclared function 'set_memory_decrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
236 | ret = set_memory_decrypted((unsigned long)
| ^
>> drivers/hv/connection.c:340:2: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
340 | set_memory_encrypted((unsigned long)vmbus_connection.monitor_pages[0], 1);
| ^
5 warnings and 2 errors generated.
--
In file included from drivers/hv/channel.c:14:
In file included from include/linux/mm.h:2208:
include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
509 | item];
| ~~~~
include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
516 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
528 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
537 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/hv/channel.c:442:8: error: call to undeclared function 'set_memory_decrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
442 | ret = set_memory_decrypted((unsigned long)kbuffer,
| ^
>> drivers/hv/channel.c:531:3: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
531 | set_memory_encrypted((unsigned long)kbuffer,
| ^
drivers/hv/channel.c:848:8: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
848 | ret = set_memory_encrypted((unsigned long)gpadl->buffer,
| ^
5 warnings and 3 errors generated.

vim +/set_memory_decrypted +132 drivers/hv/hv.c

3e7ee4902fe699 drivers/staging/hv/Hv.c Hank Janssen 2009-07-13 96
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 97 int hv_synic_alloc(void)
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 98 {
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 99 int cpu, ret = -ENOMEM;
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 100 struct hv_per_cpu_context *hv_cpu;
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 101
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 102 /*
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 103 * First, zero all per-cpu memory areas so hv_synic_free() can
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 104 * detect what memory has been allocated and cleanup properly
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 105 * after any failures.
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 106 */
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 107 for_each_present_cpu(cpu) {
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 108 hv_cpu = per_cpu_ptr(hv_context.cpu_context, cpu);
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 109 memset(hv_cpu, 0, sizeof(*hv_cpu));
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 110 }
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 111
6396bb221514d2 drivers/hv/hv.c Kees Cook 2018-06-12 112 hv_context.hv_numa_map = kcalloc(nr_node_ids, sizeof(struct cpumask),
597ff72f3de850 drivers/hv/hv.c Jia-Ju Bai 2018-03-04 113 GFP_KERNEL);
9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 114 if (hv_context.hv_numa_map == NULL) {
9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 115 pr_err("Unable to allocate NUMA map\n");
9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 116 goto err;
9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 117 }
9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 118
421b8f20d3c381 drivers/hv/hv.c Vitaly Kuznetsov 2016-12-07 119 for_each_present_cpu(cpu) {
f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 120 hv_cpu = per_cpu_ptr(hv_context.cpu_context, cpu);
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 121
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 122 tasklet_init(&hv_cpu->msg_dpc,
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 123 vmbus_on_msg_dpc, (unsigned long) hv_cpu);
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 124
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 125 if (ms_hyperv.paravisor_present && hv_isolation_type_tdx()) {
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 126 hv_cpu->post_msg_page = (void *)get_zeroed_page(GFP_ATOMIC);
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 127 if (hv_cpu->post_msg_page == NULL) {
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 128 pr_err("Unable to allocate post msg page\n");
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 129 goto err;
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 130 }
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 131
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 @132 ret = set_memory_decrypted((unsigned long)hv_cpu->post_msg_page, 1);
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 133 if (ret) {
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 134 pr_err("Failed to decrypt post msg page: %d\n", ret);
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 135 /* Just leak the page, as it's unsafe to free the page. */
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 136 hv_cpu->post_msg_page = NULL;
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 137 goto err;
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 138 }
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 139
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 140 memset(hv_cpu->post_msg_page, 0, PAGE_SIZE);
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 141 }
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 142
faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 143 /*
faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 144 * Synic message and event pages are allocated by paravisor.
faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 145 * Skip these pages allocation here.
faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 146 */
d3a9d7e49d1531 drivers/hv/hv.c Dexuan Cui 2023-08-24 147 if (!ms_hyperv.paravisor_present && !hv_root_partition) {
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 148 hv_cpu->synic_message_page =
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 149 (void *)get_zeroed_page(GFP_ATOMIC);
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 150 if (hv_cpu->synic_message_page == NULL) {
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 151 pr_err("Unable to allocate SYNIC message page\n");
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 152 goto err;
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 153 }
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 154
faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 155 hv_cpu->synic_event_page =
faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 156 (void *)get_zeroed_page(GFP_ATOMIC);
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 157 if (hv_cpu->synic_event_page == NULL) {
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 158 pr_err("Unable to allocate SYNIC event page\n");
68f2f2bc163d44 drivers/hv/hv.c Dexuan Cui 2023-08-24 159
68f2f2bc163d44 drivers/hv/hv.c Dexuan Cui 2023-08-24 160 free_page((unsigned long)hv_cpu->synic_message_page);
68f2f2bc163d44 drivers/hv/hv.c Dexuan Cui 2023-08-24 161 hv_cpu->synic_message_page = NULL;
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 162 goto err;
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 163 }
faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 164 }
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 165
68f2f2bc163d44 drivers/hv/hv.c Dexuan Cui 2023-08-24 166 if (!ms_hyperv.paravisor_present &&
e3131f1c81448a drivers/hv/hv.c Dexuan Cui 2023-08-24 167 (hv_isolation_type_snp() || hv_isolation_type_tdx())) {
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 168 ret = set_memory_decrypted((unsigned long)
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 169 hv_cpu->synic_message_page, 1);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 170 if (ret) {
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 171 pr_err("Failed to decrypt SYNIC msg page: %d\n", ret);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 172 hv_cpu->synic_message_page = NULL;
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 173
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 174 /*
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 175 * Free the event page here so that hv_synic_free()
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 176 * won't later try to re-encrypt it.
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 177 */
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 178 free_page((unsigned long)hv_cpu->synic_event_page);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 179 hv_cpu->synic_event_page = NULL;
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 180 goto err;
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 181 }
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 182
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 183 ret = set_memory_decrypted((unsigned long)
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 184 hv_cpu->synic_event_page, 1);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 185 if (ret) {
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 186 pr_err("Failed to decrypt SYNIC event page: %d\n", ret);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 187 hv_cpu->synic_event_page = NULL;
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 188 goto err;
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 189 }
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 190
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 191 memset(hv_cpu->synic_message_page, 0, PAGE_SIZE);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 192 memset(hv_cpu->synic_event_page, 0, PAGE_SIZE);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 193 }
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 194 }
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 195
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 196 return 0;
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 197
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 198 err:
572086325ce9a9 drivers/hv/hv.c Michael Kelley 2018-08-02 199 /*
572086325ce9a9 drivers/hv/hv.c Michael Kelley 2018-08-02 200 * Any memory allocations that succeeded will be freed when
572086325ce9a9 drivers/hv/hv.c Michael Kelley 2018-08-02 201 * the caller cleans up by calling hv_synic_free()
572086325ce9a9 drivers/hv/hv.c Michael Kelley 2018-08-02 202 */
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 203 return ret;
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 204 }
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 205
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 206
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 207 void hv_synic_free(void)
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 208 {
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 209 int cpu, ret;
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 210
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 211 for_each_present_cpu(cpu) {
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 212 struct hv_per_cpu_context *hv_cpu
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 213 = per_cpu_ptr(hv_context.cpu_context, cpu);
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 214
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 215 /* It's better to leak the page if the encryption fails. */
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 216 if (ms_hyperv.paravisor_present && hv_isolation_type_tdx()) {
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 217 if (hv_cpu->post_msg_page) {
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 @218 ret = set_memory_encrypted((unsigned long)
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 219 hv_cpu->post_msg_page, 1);
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 220 if (ret) {
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 221 pr_err("Failed to encrypt post msg page: %d\n", ret);
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 222 hv_cpu->post_msg_page = NULL;
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 223 }
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 224 }
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 225 }
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 226
68f2f2bc163d44 drivers/hv/hv.c Dexuan Cui 2023-08-24 227 if (!ms_hyperv.paravisor_present &&
e3131f1c81448a drivers/hv/hv.c Dexuan Cui 2023-08-24 228 (hv_isolation_type_snp() || hv_isolation_type_tdx())) {
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 229 if (hv_cpu->synic_message_page) {
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 230 ret = set_memory_encrypted((unsigned long)
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 231 hv_cpu->synic_message_page, 1);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 232 if (ret) {
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 233 pr_err("Failed to encrypt SYNIC msg page: %d\n", ret);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 234 hv_cpu->synic_message_page = NULL;
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 235 }
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 236 }
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 237
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 238 if (hv_cpu->synic_event_page) {
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 239 ret = set_memory_encrypted((unsigned long)
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 240 hv_cpu->synic_event_page, 1);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 241 if (ret) {
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 242 pr_err("Failed to encrypt SYNIC event page: %d\n", ret);
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 243 hv_cpu->synic_event_page = NULL;
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 244 }
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 245 }
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 246 }
193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 247
23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 248 free_page((unsigned long)hv_cpu->post_msg_page);
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 249 free_page((unsigned long)hv_cpu->synic_event_page);
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 250 free_page((unsigned long)hv_cpu->synic_message_page);
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 251 }
37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 252
9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 253 kfree(hv_context.hv_numa_map);
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 254 }
2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 255

--
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