mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-09-20 05:53:24 +01:00
105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
#include <stdint.h>
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#include "mmu.h"
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#include "mc.h"
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volatile security_carveout_t *get_carveout_by_id(unsigned int carveout) {
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if (CARVEOUT_ID_MIN <= carveout <= CARVEOUT_ID_MAX) {
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return (volatile security_carveout_t *)(MC_BASE + 0xC08ULL + 0x50 * (carveout - CARVEOUT_ID_MIN));
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}
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panic();
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return NULL;
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switch (carveout) {
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case 4: /* Kernel carveout */
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return (volatile security_carveout_t *)(MC_BASE + 0xCF8ULL);
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case 5: /* Unused Kernel carveout */
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return (volatile security_carveout_t *)(MC_BASE + 0xD48ULL);
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default:
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panic();
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return NULL;
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}
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}
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void configure_default_carveouts(void) {
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/* Configure Carveout 1 (UNUSED) */
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volatile security_carveout_t *carveout = get_carveout_by_id(1);
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carveout->paddr_low = 0;
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carveout->paddr_high = 0;
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carveout->size_big_pages = 0;
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carveout->flags_0 = 0;
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carveout->flags_1 = 0;
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carveout->flags_2 = 0;
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carveout->flags_3 = 0;
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carveout->flags_4 = 0;
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carveout->flags_5 = 0;
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carveout->flags_6 = 0;
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carveout->flags_7 = 0;
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carveout->flags_8 = 0;
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carveout->flags_9 = 0;
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carveout->allowed_clients = 0x04000006;
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/* Configure Carveout 2 (GPU UCODE) */
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carveout = get_carveout_by_id(2);
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carveout->paddr_low = 0x80020000;
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carveout->paddr_high = 0;
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carveout->size_big_pages = 2; /* 0x40000 */
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carveout->flags_0 = 0;
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carveout->flags_1 = 0;
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carveout->flags_2 = 0x3000000;
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carveout->flags_3 = 0;
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carveout->flags_4 = 0x300;
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carveout->flags_5 = 0;
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carveout->flags_6 = 0;
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carveout->flags_7 = 0;
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carveout->flags_8 = 0;
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carveout->flags_9 = 0;
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carveout->allowed_clients = 0x440167E;
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/* Configure Carveout 3 (UNUSED GPU) */
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carveout = get_carveout_by_id(3);
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carveout->paddr_low = 0;
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carveout->paddr_high = 0;
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carveout->size_big_pages = 0;
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carveout->flags_0 = 0;
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carveout->flags_1 = 0;
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carveout->flags_2 = 0x3000000;
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carveout->flags_3 = 0;
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carveout->flags_4 = 0x300;
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carveout->flags_5 = 0;
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carveout->flags_6 = 0;
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carveout->flags_7 = 0;
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carveout->flags_8 = 0;
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carveout->flags_9 = 0;
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carveout->allowed_clients = 0x4401E7E;
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/* Configure default Kernel carveouts based on 2.0.0+. */
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/* Configure Carveout 4 (KERNEL_BUILTINS) */
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configure_kernel_carveout(5, 0x80060000, KERNEL_CARVEOUT_SIZE_MAX);
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/* Configure Carveout 5 (KERNEL_UNUSED) */
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configure_kernel_carveout(5, 0, 0);
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}
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void configure_kernel_carveout(unsigned int carveout_id, uint64_t address, uint64_t size) {
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if (carveout_id != 4 && carveout_id != 5) {
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panic();
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}
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volatile security_carveout_t *carveout = get_carveout_by_id(carveout_id);
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carveout->paddr_low = (uint32_t)(address & 0xFFFFFFFF);
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carveout->paddr_high = (uint32_t)(address >> 32);
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carveout->size_big_pages = (uint32_t)(size >> 17);
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carveout->flags_0 = 0x70E3407F;
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carveout->flags_1 = 0x1A620880;
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carveout->flags_2 = 0x303C00;
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carveout->flags_3 = 0xCF0830BB;
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carveout->flags_4 = 0x3;
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carveout->flags_5 = 0;
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carveout->flags_6 = 0;
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carveout->flags_7 = 0;
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carveout->flags_8 = 0;
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carveout->flags_9 = 0;
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carveout->allowed_clients = 0x8B;
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}
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