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-rw-r--r--arch/arm64/include/asm/cacheflush.h4
-rw-r--r--arch/arm64/include/asm/cachetype.h20
-rw-r--r--arch/arm64/include/asm/insn.h249
-rw-r--r--arch/arm64/include/asm/percpu.h4
-rw-r--r--arch/arm64/include/asm/pgtable.h33
-rw-r--r--arch/arm64/include/asm/proc-fns.h2
-rw-r--r--arch/arm64/include/asm/thread_info.h9
7 files changed, 303 insertions, 18 deletions
diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h
index f2defe1c380c..689b6379188c 100644
--- a/arch/arm64/include/asm/cacheflush.h
+++ b/arch/arm64/include/asm/cacheflush.h
@@ -148,4 +148,8 @@ static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
{
}
+int set_memory_ro(unsigned long addr, int numpages);
+int set_memory_rw(unsigned long addr, int numpages);
+int set_memory_x(unsigned long addr, int numpages);
+int set_memory_nx(unsigned long addr, int numpages);
#endif
diff --git a/arch/arm64/include/asm/cachetype.h b/arch/arm64/include/asm/cachetype.h
index 7a2e0762cb40..4c631a0a3609 100644
--- a/arch/arm64/include/asm/cachetype.h
+++ b/arch/arm64/include/asm/cachetype.h
@@ -39,6 +39,26 @@
extern unsigned long __icache_flags;
+#define CCSIDR_EL1_LINESIZE_MASK 0x7
+#define CCSIDR_EL1_LINESIZE(x) ((x) & CCSIDR_EL1_LINESIZE_MASK)
+
+#define CCSIDR_EL1_NUMSETS_SHIFT 13
+#define CCSIDR_EL1_NUMSETS_MASK (0x7fff << CCSIDR_EL1_NUMSETS_SHIFT)
+#define CCSIDR_EL1_NUMSETS(x) \
+ (((x) & CCSIDR_EL1_NUMSETS_MASK) >> CCSIDR_EL1_NUMSETS_SHIFT)
+
+extern u64 __attribute_const__ icache_get_ccsidr(void);
+
+static inline int icache_get_linesize(void)
+{
+ return 16 << CCSIDR_EL1_LINESIZE(icache_get_ccsidr());
+}
+
+static inline int icache_get_numsets(void)
+{
+ return 1 + CCSIDR_EL1_NUMSETS(icache_get_ccsidr());
+}
+
/*
* Whilst the D-side always behaves as PIPT on AArch64, aliasing is
* permitted in the I-cache.
diff --git a/arch/arm64/include/asm/insn.h b/arch/arm64/include/asm/insn.h
index dc1f73b13e74..56a9e63b6c33 100644
--- a/arch/arm64/include/asm/insn.h
+++ b/arch/arm64/include/asm/insn.h
@@ -2,6 +2,8 @@
* Copyright (C) 2013 Huawei Ltd.
* Author: Jiang Liu <liuj97@gmail.com>
*
+ * Copyright (C) 2014 Zi Shen Lim <zlim.lnx@gmail.com>
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
@@ -64,12 +66,155 @@ enum aarch64_insn_imm_type {
AARCH64_INSN_IMM_14,
AARCH64_INSN_IMM_12,
AARCH64_INSN_IMM_9,
+ AARCH64_INSN_IMM_7,
+ AARCH64_INSN_IMM_6,
+ AARCH64_INSN_IMM_S,
+ AARCH64_INSN_IMM_R,
AARCH64_INSN_IMM_MAX
};
+enum aarch64_insn_register_type {
+ AARCH64_INSN_REGTYPE_RT,
+ AARCH64_INSN_REGTYPE_RN,
+ AARCH64_INSN_REGTYPE_RT2,
+ AARCH64_INSN_REGTYPE_RM,
+ AARCH64_INSN_REGTYPE_RD,
+ AARCH64_INSN_REGTYPE_RA,
+};
+
+enum aarch64_insn_register {
+ AARCH64_INSN_REG_0 = 0,
+ AARCH64_INSN_REG_1 = 1,
+ AARCH64_INSN_REG_2 = 2,
+ AARCH64_INSN_REG_3 = 3,
+ AARCH64_INSN_REG_4 = 4,
+ AARCH64_INSN_REG_5 = 5,
+ AARCH64_INSN_REG_6 = 6,
+ AARCH64_INSN_REG_7 = 7,
+ AARCH64_INSN_REG_8 = 8,
+ AARCH64_INSN_REG_9 = 9,
+ AARCH64_INSN_REG_10 = 10,
+ AARCH64_INSN_REG_11 = 11,
+ AARCH64_INSN_REG_12 = 12,
+ AARCH64_INSN_REG_13 = 13,
+ AARCH64_INSN_REG_14 = 14,
+ AARCH64_INSN_REG_15 = 15,
+ AARCH64_INSN_REG_16 = 16,
+ AARCH64_INSN_REG_17 = 17,
+ AARCH64_INSN_REG_18 = 18,
+ AARCH64_INSN_REG_19 = 19,
+ AARCH64_INSN_REG_20 = 20,
+ AARCH64_INSN_REG_21 = 21,
+ AARCH64_INSN_REG_22 = 22,
+ AARCH64_INSN_REG_23 = 23,
+ AARCH64_INSN_REG_24 = 24,
+ AARCH64_INSN_REG_25 = 25,
+ AARCH64_INSN_REG_26 = 26,
+ AARCH64_INSN_REG_27 = 27,
+ AARCH64_INSN_REG_28 = 28,
+ AARCH64_INSN_REG_29 = 29,
+ AARCH64_INSN_REG_FP = 29, /* Frame pointer */
+ AARCH64_INSN_REG_30 = 30,
+ AARCH64_INSN_REG_LR = 30, /* Link register */
+ AARCH64_INSN_REG_ZR = 31, /* Zero: as source register */
+ AARCH64_INSN_REG_SP = 31 /* Stack pointer: as load/store base reg */
+};
+
+enum aarch64_insn_variant {
+ AARCH64_INSN_VARIANT_32BIT,
+ AARCH64_INSN_VARIANT_64BIT
+};
+
+enum aarch64_insn_condition {
+ AARCH64_INSN_COND_EQ = 0x0, /* == */
+ AARCH64_INSN_COND_NE = 0x1, /* != */
+ AARCH64_INSN_COND_CS = 0x2, /* unsigned >= */
+ AARCH64_INSN_COND_CC = 0x3, /* unsigned < */
+ AARCH64_INSN_COND_MI = 0x4, /* < 0 */
+ AARCH64_INSN_COND_PL = 0x5, /* >= 0 */
+ AARCH64_INSN_COND_VS = 0x6, /* overflow */
+ AARCH64_INSN_COND_VC = 0x7, /* no overflow */
+ AARCH64_INSN_COND_HI = 0x8, /* unsigned > */
+ AARCH64_INSN_COND_LS = 0x9, /* unsigned <= */
+ AARCH64_INSN_COND_GE = 0xa, /* signed >= */
+ AARCH64_INSN_COND_LT = 0xb, /* signed < */
+ AARCH64_INSN_COND_GT = 0xc, /* signed > */
+ AARCH64_INSN_COND_LE = 0xd, /* signed <= */
+ AARCH64_INSN_COND_AL = 0xe, /* always */
+};
+
enum aarch64_insn_branch_type {
AARCH64_INSN_BRANCH_NOLINK,
AARCH64_INSN_BRANCH_LINK,
+ AARCH64_INSN_BRANCH_RETURN,
+ AARCH64_INSN_BRANCH_COMP_ZERO,
+ AARCH64_INSN_BRANCH_COMP_NONZERO,
+};
+
+enum aarch64_insn_size_type {
+ AARCH64_INSN_SIZE_8,
+ AARCH64_INSN_SIZE_16,
+ AARCH64_INSN_SIZE_32,
+ AARCH64_INSN_SIZE_64,
+};
+
+enum aarch64_insn_ldst_type {
+ AARCH64_INSN_LDST_LOAD_REG_OFFSET,
+ AARCH64_INSN_LDST_STORE_REG_OFFSET,
+ AARCH64_INSN_LDST_LOAD_PAIR_PRE_INDEX,
+ AARCH64_INSN_LDST_STORE_PAIR_PRE_INDEX,
+ AARCH64_INSN_LDST_LOAD_PAIR_POST_INDEX,
+ AARCH64_INSN_LDST_STORE_PAIR_POST_INDEX,
+};
+
+enum aarch64_insn_adsb_type {
+ AARCH64_INSN_ADSB_ADD,
+ AARCH64_INSN_ADSB_SUB,
+ AARCH64_INSN_ADSB_ADD_SETFLAGS,
+ AARCH64_INSN_ADSB_SUB_SETFLAGS
+};
+
+enum aarch64_insn_movewide_type {
+ AARCH64_INSN_MOVEWIDE_ZERO,
+ AARCH64_INSN_MOVEWIDE_KEEP,
+ AARCH64_INSN_MOVEWIDE_INVERSE
+};
+
+enum aarch64_insn_bitfield_type {
+ AARCH64_INSN_BITFIELD_MOVE,
+ AARCH64_INSN_BITFIELD_MOVE_UNSIGNED,
+ AARCH64_INSN_BITFIELD_MOVE_SIGNED
+};
+
+enum aarch64_insn_data1_type {
+ AARCH64_INSN_DATA1_REVERSE_16,
+ AARCH64_INSN_DATA1_REVERSE_32,
+ AARCH64_INSN_DATA1_REVERSE_64,
+};
+
+enum aarch64_insn_data2_type {
+ AARCH64_INSN_DATA2_UDIV,
+ AARCH64_INSN_DATA2_SDIV,
+ AARCH64_INSN_DATA2_LSLV,
+ AARCH64_INSN_DATA2_LSRV,
+ AARCH64_INSN_DATA2_ASRV,
+ AARCH64_INSN_DATA2_RORV,
+};
+
+enum aarch64_insn_data3_type {
+ AARCH64_INSN_DATA3_MADD,
+ AARCH64_INSN_DATA3_MSUB,
+};
+
+enum aarch64_insn_logic_type {
+ AARCH64_INSN_LOGIC_AND,
+ AARCH64_INSN_LOGIC_BIC,
+ AARCH64_INSN_LOGIC_ORR,
+ AARCH64_INSN_LOGIC_ORN,
+ AARCH64_INSN_LOGIC_EOR,
+ AARCH64_INSN_LOGIC_EON,
+ AARCH64_INSN_LOGIC_AND_SETFLAGS,
+ AARCH64_INSN_LOGIC_BIC_SETFLAGS
};
#define __AARCH64_INSN_FUNCS(abbr, mask, val) \
@@ -78,13 +223,58 @@ static __always_inline bool aarch64_insn_is_##abbr(u32 code) \
static __always_inline u32 aarch64_insn_get_##abbr##_value(void) \
{ return (val); }
+__AARCH64_INSN_FUNCS(str_reg, 0x3FE0EC00, 0x38206800)
+__AARCH64_INSN_FUNCS(ldr_reg, 0x3FE0EC00, 0x38606800)
+__AARCH64_INSN_FUNCS(stp_post, 0x7FC00000, 0x28800000)
+__AARCH64_INSN_FUNCS(ldp_post, 0x7FC00000, 0x28C00000)
+__AARCH64_INSN_FUNCS(stp_pre, 0x7FC00000, 0x29800000)
+__AARCH64_INSN_FUNCS(ldp_pre, 0x7FC00000, 0x29C00000)
+__AARCH64_INSN_FUNCS(add_imm, 0x7F000000, 0x11000000)
+__AARCH64_INSN_FUNCS(adds_imm, 0x7F000000, 0x31000000)
+__AARCH64_INSN_FUNCS(sub_imm, 0x7F000000, 0x51000000)
+__AARCH64_INSN_FUNCS(subs_imm, 0x7F000000, 0x71000000)
+__AARCH64_INSN_FUNCS(movn, 0x7F800000, 0x12800000)
+__AARCH64_INSN_FUNCS(sbfm, 0x7F800000, 0x13000000)
+__AARCH64_INSN_FUNCS(bfm, 0x7F800000, 0x33000000)
+__AARCH64_INSN_FUNCS(movz, 0x7F800000, 0x52800000)
+__AARCH64_INSN_FUNCS(ubfm, 0x7F800000, 0x53000000)
+__AARCH64_INSN_FUNCS(movk, 0x7F800000, 0x72800000)
+__AARCH64_INSN_FUNCS(add, 0x7F200000, 0x0B000000)
+__AARCH64_INSN_FUNCS(adds, 0x7F200000, 0x2B000000)
+__AARCH64_INSN_FUNCS(sub, 0x7F200000, 0x4B000000)
+__AARCH64_INSN_FUNCS(subs, 0x7F200000, 0x6B000000)
+__AARCH64_INSN_FUNCS(madd, 0x7FE08000, 0x1B000000)
+__AARCH64_INSN_FUNCS(msub, 0x7FE08000, 0x1B008000)
+__AARCH64_INSN_FUNCS(udiv, 0x7FE0FC00, 0x1AC00800)
+__AARCH64_INSN_FUNCS(sdiv, 0x7FE0FC00, 0x1AC00C00)
+__AARCH64_INSN_FUNCS(lslv, 0x7FE0FC00, 0x1AC02000)
+__AARCH64_INSN_FUNCS(lsrv, 0x7FE0FC00, 0x1AC02400)
+__AARCH64_INSN_FUNCS(asrv, 0x7FE0FC00, 0x1AC02800)
+__AARCH64_INSN_FUNCS(rorv, 0x7FE0FC00, 0x1AC02C00)
+__AARCH64_INSN_FUNCS(rev16, 0x7FFFFC00, 0x5AC00400)
+__AARCH64_INSN_FUNCS(rev32, 0x7FFFFC00, 0x5AC00800)
+__AARCH64_INSN_FUNCS(rev64, 0x7FFFFC00, 0x5AC00C00)
+__AARCH64_INSN_FUNCS(and, 0x7F200000, 0x0A000000)
+__AARCH64_INSN_FUNCS(bic, 0x7F200000, 0x0A200000)
+__AARCH64_INSN_FUNCS(orr, 0x7F200000, 0x2A000000)
+__AARCH64_INSN_FUNCS(orn, 0x7F200000, 0x2A200000)
+__AARCH64_INSN_FUNCS(eor, 0x7F200000, 0x4A000000)
+__AARCH64_INSN_FUNCS(eon, 0x7F200000, 0x4A200000)
+__AARCH64_INSN_FUNCS(ands, 0x7F200000, 0x6A000000)
+__AARCH64_INSN_FUNCS(bics, 0x7F200000, 0x6A200000)
__AARCH64_INSN_FUNCS(b, 0xFC000000, 0x14000000)
__AARCH64_INSN_FUNCS(bl, 0xFC000000, 0x94000000)
+__AARCH64_INSN_FUNCS(cbz, 0xFE000000, 0x34000000)
+__AARCH64_INSN_FUNCS(cbnz, 0xFE000000, 0x35000000)
+__AARCH64_INSN_FUNCS(bcond, 0xFF000010, 0x54000000)
__AARCH64_INSN_FUNCS(svc, 0xFFE0001F, 0xD4000001)
__AARCH64_INSN_FUNCS(hvc, 0xFFE0001F, 0xD4000002)
__AARCH64_INSN_FUNCS(smc, 0xFFE0001F, 0xD4000003)
__AARCH64_INSN_FUNCS(brk, 0xFFE0001F, 0xD4200000)
__AARCH64_INSN_FUNCS(hint, 0xFFFFF01F, 0xD503201F)
+__AARCH64_INSN_FUNCS(br, 0xFFFFFC1F, 0xD61F0000)
+__AARCH64_INSN_FUNCS(blr, 0xFFFFFC1F, 0xD63F0000)
+__AARCH64_INSN_FUNCS(ret, 0xFFFFFC1F, 0xD65F0000)
#undef __AARCH64_INSN_FUNCS
@@ -97,8 +287,67 @@ u32 aarch64_insn_encode_immediate(enum aarch64_insn_imm_type type,
u32 insn, u64 imm);
u32 aarch64_insn_gen_branch_imm(unsigned long pc, unsigned long addr,
enum aarch64_insn_branch_type type);
+u32 aarch64_insn_gen_comp_branch_imm(unsigned long pc, unsigned long addr,
+ enum aarch64_insn_register reg,
+ enum aarch64_insn_variant variant,
+ enum aarch64_insn_branch_type type);
+u32 aarch64_insn_gen_cond_branch_imm(unsigned long pc, unsigned long addr,
+ enum aarch64_insn_condition cond);
u32 aarch64_insn_gen_hint(enum aarch64_insn_hint_op op);
u32 aarch64_insn_gen_nop(void);
+u32 aarch64_insn_gen_branch_reg(enum aarch64_insn_register reg,
+ enum aarch64_insn_branch_type type);
+u32 aarch64_insn_gen_load_store_reg(enum aarch64_insn_register reg,
+ enum aarch64_insn_register base,
+ enum aarch64_insn_register offset,
+ enum aarch64_insn_size_type size,
+ enum aarch64_insn_ldst_type type);
+u32 aarch64_insn_gen_load_store_pair(enum aarch64_insn_register reg1,
+ enum aarch64_insn_register reg2,
+ enum aarch64_insn_register base,
+ int offset,
+ enum aarch64_insn_variant variant,
+ enum aarch64_insn_ldst_type type);
+u32 aarch64_insn_gen_add_sub_imm(enum aarch64_insn_register dst,
+ enum aarch64_insn_register src,
+ int imm, enum aarch64_insn_variant variant,
+ enum aarch64_insn_adsb_type type);
+u32 aarch64_insn_gen_bitfield(enum aarch64_insn_register dst,
+ enum aarch64_insn_register src,
+ int immr, int imms,
+ enum aarch64_insn_variant variant,
+ enum aarch64_insn_bitfield_type type);
+u32 aarch64_insn_gen_movewide(enum aarch64_insn_register dst,
+ int imm, int shift,
+ enum aarch64_insn_variant variant,
+ enum aarch64_insn_movewide_type type);
+u32 aarch64_insn_gen_add_sub_shifted_reg(enum aarch64_insn_register dst,
+ enum aarch64_insn_register src,
+ enum aarch64_insn_register reg,
+ int shift,
+ enum aarch64_insn_variant variant,
+ enum aarch64_insn_adsb_type type);
+u32 aarch64_insn_gen_data1(enum aarch64_insn_register dst,
+ enum aarch64_insn_register src,
+ enum aarch64_insn_variant variant,
+ enum aarch64_insn_data1_type type);
+u32 aarch64_insn_gen_data2(enum aarch64_insn_register dst,
+ enum aarch64_insn_register src,
+ enum aarch64_insn_register reg,
+ enum aarch64_insn_variant variant,
+ enum aarch64_insn_data2_type type);
+u32 aarch64_insn_gen_data3(enum aarch64_insn_register dst,
+ enum aarch64_insn_register src,
+ enum aarch64_insn_register reg1,
+ enum aarch64_insn_register reg2,
+ enum aarch64_insn_variant variant,
+ enum aarch64_insn_data3_type type);
+u32 aarch64_insn_gen_logical_shifted_reg(enum aarch64_insn_register dst,
+ enum aarch64_insn_register src,
+ enum aarch64_insn_register reg,
+ int shift,
+ enum aarch64_insn_variant variant,
+ enum aarch64_insn_logic_type type);
bool aarch64_insn_hotpatch_safe(u32 old_insn, u32 new_insn);
diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h
index 453a179469a3..5279e5733386 100644
--- a/arch/arm64/include/asm/percpu.h
+++ b/arch/arm64/include/asm/percpu.h
@@ -26,13 +26,13 @@ static inline void set_my_cpu_offset(unsigned long off)
static inline unsigned long __my_cpu_offset(void)
{
unsigned long off;
- register unsigned long *sp asm ("sp");
/*
* We want to allow caching the value, so avoid using volatile and
* instead use a fake stack read to hazard against barrier().
*/
- asm("mrs %0, tpidr_el1" : "=r" (off) : "Q" (*sp));
+ asm("mrs %0, tpidr_el1" : "=r" (off) :
+ "Q" (*(const unsigned long *)current_stack_pointer));
return off;
}
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index ffe1ba0506d1..d58e40cde88e 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -149,46 +149,51 @@ extern struct page *empty_zero_page;
#define pte_valid_not_user(pte) \
((pte_val(pte) & (PTE_VALID | PTE_USER)) == PTE_VALID)
-static inline pte_t pte_wrprotect(pte_t pte)
+static inline pte_t clear_pte_bit(pte_t pte, pgprot_t prot)
{
- pte_val(pte) &= ~PTE_WRITE;
+ pte_val(pte) &= ~pgprot_val(prot);
return pte;
}
-static inline pte_t pte_mkwrite(pte_t pte)
+static inline pte_t set_pte_bit(pte_t pte, pgprot_t prot)
{
- pte_val(pte) |= PTE_WRITE;
+ pte_val(pte) |= pgprot_val(prot);
return pte;
}
+static inline pte_t pte_wrprotect(pte_t pte)
+{
+ return clear_pte_bit(pte, __pgprot(PTE_WRITE));
+}
+
+static inline pte_t pte_mkwrite(pte_t pte)
+{
+ return set_pte_bit(pte, __pgprot(PTE_WRITE));
+}
+
static inline pte_t pte_mkclean(pte_t pte)
{
- pte_val(pte) &= ~PTE_DIRTY;
- return pte;
+ return clear_pte_bit(pte, __pgprot(PTE_DIRTY));
}
static inline pte_t pte_mkdirty(pte_t pte)
{
- pte_val(pte) |= PTE_DIRTY;
- return pte;
+ return set_pte_bit(pte, __pgprot(PTE_DIRTY));
}
static inline pte_t pte_mkold(pte_t pte)
{
- pte_val(pte) &= ~PTE_AF;
- return pte;
+ return clear_pte_bit(pte, __pgprot(PTE_AF));
}
static inline pte_t pte_mkyoung(pte_t pte)
{
- pte_val(pte) |= PTE_AF;
- return pte;
+ return set_pte_bit(pte, __pgprot(PTE_AF));
}
static inline pte_t pte_mkspecial(pte_t pte)
{
- pte_val(pte) |= PTE_SPECIAL;
- return pte;
+ return set_pte_bit(pte, __pgprot(PTE_SPECIAL));
}
static inline void set_pte(pte_t *ptep, pte_t pte)
diff --git a/arch/arm64/include/asm/proc-fns.h b/arch/arm64/include/asm/proc-fns.h
index 0c657bb54597..9a8fd84f8fb2 100644
--- a/arch/arm64/include/asm/proc-fns.h
+++ b/arch/arm64/include/asm/proc-fns.h
@@ -32,6 +32,8 @@ extern void cpu_cache_off(void);
extern void cpu_do_idle(void);
extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
+void cpu_soft_restart(phys_addr_t cpu_reset,
+ unsigned long addr) __attribute__((noreturn));
extern void cpu_do_suspend(struct cpu_suspend_ctx *ptr);
extern u64 cpu_do_resume(phys_addr_t ptr, u64 idmap_ttbr);
diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h
index 45108d802f5e..459bf8e53208 100644
--- a/arch/arm64/include/asm/thread_info.h
+++ b/arch/arm64/include/asm/thread_info.h
@@ -69,14 +69,19 @@ struct thread_info {
#define init_stack (init_thread_union.stack)
/*
+ * how to get the current stack pointer from C
+ */
+register unsigned long current_stack_pointer asm ("sp");
+
+/*
* how to get the thread information struct from C
*/
static inline struct thread_info *current_thread_info(void) __attribute_const__;
static inline struct thread_info *current_thread_info(void)
{
- register unsigned long sp asm ("sp");
- return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
+ return (struct thread_info *)
+ (current_stack_pointer & ~(THREAD_SIZE - 1));
}
#define thread_saved_pc(tsk) \
generated by cgit v1.2.3 (git 2.0.4) at 2025-06-02 03:59:00 +0000