[PATCH v1 4/8] xen/riscv: introduce function for physical offset calculation

The function was introduced to not calculate and save physical offset before MMU is enabled because access to start() is PC-relative and in case of linker_addr != load_addr it will result in incorrect value in phys_offset. Signed-off-by: Oleksii Kurochko --- xen/arch/riscv/include/asm/mm.h | 2

[PATCH v1 1/8] xen/riscv: make sure that identity mapping isn't bigger then page size

Signed-off-by: Oleksii Kurochko --- xen/arch/riscv/xen.lds.S | 9 + 1 file changed, 9 insertions(+) diff --git a/xen/arch/riscv/xen.lds.S b/xen/arch/riscv/xen.lds.S index 878130f313..74afbaab9b 100644 --- a/xen/arch/riscv/xen.lds.S +++ b/xen/arch/riscv/xen.lds.S @@ -20,6 +20,7

[PATCH v1 3/8] xen/riscv: introduce reset_stack() function

Signed-off-by: Oleksii Kurochko --- xen/arch/riscv/riscv64/head.S | 8 +++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/xen/arch/riscv/riscv64/head.S b/xen/arch/riscv/riscv64/head.S index 8887f0cbd4..6fb7dd80fd 100644 --- a/xen/arch/riscv/riscv64/head.S +++ b/xen/arch/riscv

[PATCH v1 2/8] xen/riscv: add .sbss section to .bss

Sometimes variables are located in .sbss section but it won't be mapped after MMU will be enabled. To avoid MMU failures .sbss should be mapped Signed-off-by: Oleksii Kurochko --- xen/arch/riscv/xen.lds.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/arch/riscv

[PATCH v1 0/8] xen/riscv: introduce identity mapping

. * Added __ASSEMBLY__ guards. * move extern of cpu0_boot_stack to a header. The reason for this patch series can be found here: https://lore.kernel.org/xen-devel/4e336121-fc0c-b007-bf7b-430352563...@citrix.com/ Oleksii Kurochko (8): xen/riscv: make sure that identity mapping isn't bigger then page

[PATCH v1 5/8] xen/riscv: introduce identity mapping

The way how switch to virtual address was implemented in the commit e66003e7be ("xen/riscv: introduce setup_initial_pages") wasn't safe enough so identity mapping was introduced and used. Fixes: e66003e7be ("xen/riscv: introduce setup_initial_pages") Signed-off-by: Oleksii Kur

[PATCH v6 6/6] xen/riscv: test basic handling stuff

Signed-off-by: Oleksii Kurochko Acked-by: Alistair Francis --- Changes in V6: - Nothing changed --- Changes in V5: - Nothing changed --- Changes in V4: - Add Acked-by: Alistair Francis --- Changes in V3: - Nothing changed --- Changes in V2: - Nothing changed --- xen/arch/riscv

[PATCH v6 4/6] xen/riscv: introduce trap_init()

Signed-off-by: Oleksii Kurochko Reviewed-by: Alistair Francis --- Changes in V6: - trap_init() is now called after enabling the MMU. - Add additional explanatory comments. --- Changes in V5: - Nothing changed --- Changes in V4: - Nothing changed --- Changes in V3: - Nothing changed

[PATCH v6 1/6] xen/riscv: introduce temporary printk stuff

The patch introdcuces printk related stuff which should be deleted after Xen common code will be available. Signed-off-by: Oleksii Kurochko --- Changes in V6: - the patch was introduced in the current patch series (V6) --- xen/arch/riscv/early_printk.c | 168

[PATCH v6 5/6] xen/riscv: introduce an implementation of macros from

nformation. Signed-off-by: Oleksii Kurochko --- Changes in V6: - Avoid LINK_TO_LOAD() as bug.h functionality expected to be used after MMU is enabled. - Change early_printk() to printk() --- Changes in V5: - Remove "#include " from as there is no any need in it anymo

[PATCH v6 2/6] xen/riscv: introduce dummy

will be used in the patch "xen/riscv: introduce decode_cause() stuff" and requires Signed-off-by: Oleksii Kurochko --- Changes in V6: - Nothing changed. Only rebase. --- Changes in V5: * the patch was introduced in the current patch series (V5) --- xen/arch/riscv/include/asm/

[PATCH v6 0/6] [PATCH v5 0/7] RISCV basic exception handling implementation

mpty headers: and as they are needed to include which provides ARRAY_SIZE and other macros. - Code style fixes. --- Oleksii Kurochko (6): xen/riscv: introduce temporary printk stuff xen/riscv: introduce dummy xen/riscv: introduce decode_cause() stuff xen/riscv: introduce trap_init()

[PATCH v6 3/6] xen/riscv: introduce decode_cause() stuff

The patch introduces stuff needed to decode a reason of an exception. Signed-off-by: Oleksii Kurochko --- Changes in V6: - Remove usage of LINK_TO_LOAD() due to the MMU being enabled first. - Change early_printk() to printk() --- Changes in V5: - Remove from riscv/traps/c as nothing would

[PATCH v9 0/5] enable MMU for RISC-V

automation: update RISC-V smoke test" from the patch series as it was introduced simplified approach for RISC-V smoke test by Andrew Cooper * Add patch [[xen/riscv: remove dummy_bss variable] as there is no any sense in dummy_bss variable after introduction of inittial page t

[PATCH v9 3/5] xen/riscv: align __bss_start

.bss section") Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich --- Changes in V9: * Nothing changed. Only rebase. --- Changes in V8: * Remove ". = ALIGN(PAGE_SIZE);" before "*(.bss.page_aligned)" in vmlinux.lds.S file as any contribution to .bss.page_aligned have

[PATCH v9 4/5] xen/riscv: setup initial pagetables

The patch does two thing: 1. Setup initial pagetables. 2. Enable MMU which end up with code in cont_after_mmu_is_enabled() Signed-off-by: Oleksii Kurochko --- Changes in V9: - Nothing changed. Only rebase --- Changes in V8: - Nothing changed. Only rebase --- Changes in V7: - Nothing

[PATCH v9 5/5] xen/riscv: remove dummy_bss variable

After introduction of initial pagetables there is no any sense in dummy_bss variable as bss section will not be empty anymore. Signed-off-by: Oleksii Kurochko --- Changes in V9: - Nothing changed. Only rebase --- Changes in V8: - Nothing changed. Only rebase --- Changes in V7: - Nothing

[PATCH v9 2/5] xen/riscv: introduce setup_initial_pages

ons for specific section ( such as .text, .rodata, etc ) otherwise RW permission will be set by default. * Add function to check that requested SATP_MODE is supported Origin: g...@github.com:xvisor/xvisor.git 9be2fdd7 Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich --- Changes in V9: - Add &

[PATCH v9 1/5] xen/riscv: add VM space layout

Also it was added explanation about ignoring of top VA bits Signed-off-by: Oleksii Kurochko --- Changes in V9: - Update comment for VM layout description. --- Changes in V8: - Add "#ifdef RV_STAGE1_MODE == SATP_MODE_SV39" instead of "#ifdef SV39" in the comment to V

[PATCH v8 3/5] xen/riscv: align __bss_start

.bss section") Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich --- Changes in V8: * Remove ". = ALIGN(PAGE_SIZE);" before "*(.bss.page_aligned)" in vmlinux.lds.S file as any contribution to .bss.page_aligned have to specify proper alignment themselves. * Add

[PATCH v8 1/5] xen/riscv: add VM space layout

Also it was added explanation about ignoring of top VA bits Signed-off-by: Oleksii Kurochko --- Changes in V8: - Add "#ifdef RV_STAGE1_MODE == SATP_MODE_SV39" instead of "#ifdef SV39" in the comment to VM layout description. - Update the upper bound of direct m

[PATCH v8 0/5] enable MMU for RISC-V

such section in xen.lds.S * Update the argument of pte_is_valid() to "const pte_t *p" * Remove patch "[PATCH v1 3/3] automation: update RISC-V smoke test" from the patch series as it was introduced simplified approach for RISC-V smoke test by Andrew Cooper * Add patch [

[PATCH v8 2/5] xen/riscv: introduce setup_initial_pages

ons for specific section ( such as .text, .rodata, etc ) otherwise RW permission will be set by default. * Add function to check that requested SATP_MODE is supported Origin: g...@github.com:xvisor/xvisor.git 9be2fdd7 Signed-off-by: Oleksii Kurochko --- Changes in V8: - Add parentheses for

[PATCH v8 5/5] xen/riscv: remove dummy_bss variable

After introduction of initial pagetables there is no any sense in dummy_bss variable as bss section will not be empty anymore. Signed-off-by: Oleksii Kurochko --- Changes in V8: - Nothing changed. Only rebase --- Changes in V7: - Nothing changed. Only rebase --- Changes in V6: - Nothing

[PATCH v8 4/5] xen/riscv: setup initial pagetables

The patch does two thing: 1. Setup initial pagetables. 2. Enable MMU which end up with code in cont_after_mmu_is_enabled() Signed-off-by: Oleksii Kurochko --- Changes in V8: - Nothing changed. Only rebase --- Changes in V7: - Nothing changed. Only rebase --- Changes in V6: - Nothing

[PATCH v7 0/5] enable MMU for RISC-V

oke test by Andrew Cooper * Add patch [[xen/riscv: remove dummy_bss variable] as there is no any sense in dummy_bss variable after introduction of inittial page tables. --- Oleksii Kurochko (5): xen/riscv: add VM space layout xen/riscv: introduce setup_initial_pages xen/riscv: align __bss_sta

[PATCH v7 4/5] xen/riscv: setup initial pagetables

The patch does two thing: 1. Setup initial pagetables. 2. Enable MMU which end up with code in cont_after_mmu_is_enabled() Signed-off-by: Oleksii Kurochko --- Changes in V7: - Nothing changed. Only rebase --- Changes in V6: - Nothing changed. Only rebase --- Changes in V5: - Nothing

[PATCH v7 3/5] xen/riscv: align __bss_start

bss clear cycle requires proper alignment of __bss_start. Signed-off-by: Oleksii Kurochko --- Changes in V7: * the patch was introduced in the current patch series. --- xen/arch/riscv/xen.lds.S | 1 + 1 file changed, 1 insertion(+) diff --git a/xen/arch/riscv/xen.lds.S b/xen/arch/riscv

[PATCH v7 2/5] xen/riscv: introduce setup_initial_pages

ons for specific section ( such as .text, .rodata, etc ) otherwise RW permission will be set by default. * Add function to check that requested SATP_MODE is supported Origin: g...@github.com:xvisor/xvisor.git 9be2fdd7 Signed-off-by: Oleksii Kurochko --- Changes in V7: - define CONFIG_PAGING_LEV

[PATCH v7 1/5] xen/riscv: add VM space layout

Also it was added explanation about ignoring of top VA bits Signed-off-by: Oleksii Kurochko --- Changes in V7: - Fix range of frametable range in RV64 layout. - Add ifdef SV39 to the RV64 layout comment to make it explicit that description if for SV39 mode. - Add missed row in the RV64

[PATCH v7 5/5] xen/riscv: remove dummy_bss variable

After introduction of initial pagetables there is no any sense in dummy_bss variable as bss section will not be empty anymore. Signed-off-by: Oleksii Kurochko --- Changes in V6: - Nothing changed. Only rebase --- Changes in V5: - Nothing changed. Only rebase --- Changes in V4: - Nothing

[PATCH v6 4/4] xen/riscv: remove dummy_bss variable

After introduction of initial pagetables there is no any sense in dummy_bss variable as bss section will not be empty anymore. Signed-off-by: Oleksii Kurochko --- Changes in V6: - Nothing changed. Only rebase --- Changes in V5: - Nothing changed. Only rebase --- Changes in V4: - Nothing

[PATCH v6 2/4] xen/riscv: introduce setup_initial_pages

ons for specific section ( such as .text, .rodata, etc ) otherwise RW permission will be set by default. * Add function to check that requested SATP_MODE is supported Origin: g...@github.com:xvisor/xvisor.git 9be2fdd7 Signed-off-by: Oleksii Kurochko --- Changes in V6: - move PAGE_SHIFT, PADDR_BITS t

[PATCH v6 0/4] enable MMU for RISC-V

patch series as it was introduced simplified approach for RISC-V smoke test by Andrew Cooper * Add patch [[xen/riscv: remove dummy_bss variable] as there is no any sense in dummy_bss variable after introduction of inittial page tables. --- Oleksii Kurochko (4): xen/riscv: add VM sp

[PATCH v6 1/4] xen/riscv: add VM space layout

Also it was added explanation about ignoring of top VA bits Signed-off-by: Oleksii Kurochko --- Changes in V6: - update comment above the RISCV-64 layout table - add Slot column to the table with RISCV-64 Layout - update RV-64 layout table. --- Changes in V5: * the patch was introduced

[PATCH v6 3/4] xen/riscv: setup initial pagetables

The patch does two thing: 1. Setup initial pagetables. 2. Enable MMU which end up with code in cont_after_mmu_is_enabled() Signed-off-by: Oleksii Kurochko --- Changes in V6: - Nothing changed. Only rebase --- Changes in V5: - Nothing changed. Only rebase --- Changes in V4: - Nothing

[PATCH v5 2/4] xen/riscv: introduce setup_initial_pages

ons for specific section ( such as .text, .rodata, etc ) otherwise RW permission will be set by default. * Add function to check that requested SATP_MODE is supported Origin: g...@github.com:xvisor/xvisor.git 9be2fdd7 Signed-off-by: Oleksii Kurochko --- Changes in V5: * Indent fields of pte_t

[PATCH v5 3/4] xen/riscv: setup initial pagetables

The patch does two thing: 1. Setup initial pagetables. 2. Enable MMU which end up with code in cont_after_mmu_is_enabled() Signed-off-by: Oleksii Kurochko --- Changes in V5: - Nothing changed. Only rebase --- Changes in V4: - Nothing changed. Only rebase --- Changes in V3: - update

[PATCH v5 4/4] xen/riscv: remove dummy_bss variable

After introduction of initial pagetables there is no any sense in dummy_bss variable as bss section will not be empty anymore. Signed-off-by: Oleksii Kurochko --- Changes in V5: - Nothing changed. Only rebase --- Changes in V4: - Nothing changed. Only rebase --- Changes in V3: * patch

[PATCH v5 0/4] enable MMU for RISC-V

duced simplified approach for RISC-V smoke test by Andrew Cooper * Add patch [[xen/riscv: remove dummy_bss variable] as there is no any sense in dummy_bss variable after introduction of inittial page tables. --- Oleksii Kurochko (4): xen/riscv: add VM space layout xen/riscv: introd

[PATCH v5 1/4] xen/riscv: add VM space layout

Also it was added explanation about ignoring of top VA bits Signed-off-by: Oleksii Kurochko --- Changes in V5: * the patch was introduced in the current patch series. --- xen/arch/riscv/include/asm/config.h | 31 + 1 file changed, 31 insertions(+) diff --git a/xen

[PATCH v4 0/3] enable MMU for RISC-V

dd patch [[xen/riscv: remove dummy_bss variable] as there is no any sense in dummy_bss variable after introduction of inittial page tables. --- Oleksii Kurochko (3): xen/riscv: introduce setup_initial_pages xen/riscv: setup initial pagetables xen/riscv: remove dummy_bss variable xen/arch/

[PATCH v4 3/3] xen/riscv: remove dummy_bss variable

After introduction of initial pagetables there is no any sense in dummy_bss variable as bss section will not be empty anymore. Signed-off-by: Oleksii Kurochko --- Changes in V4: - Nothing changed. Only rebase --- Changes in V3: * patch was introduced in the current one patch series (v3

[PATCH v4 1/3] xen/riscv: introduce setup_initial_pages

ons for specific section ( such as .text, .rodata, etc ) otherwise RW permission will be set by default. * Add function to check that requested SATP_MODE is supported Origin: g...@github.com:xvisor/xvisor.git 9be2fdd7 Signed-off-by: Oleksii Kurochko --- Changes in V4: * use GB() macros instead of def

[PATCH v4 2/3] xen/riscv: setup initial pagetables

The patch does two thing: 1. Setup initial pagetables. 2. Enable MMU which end up with code in cont_after_mmu_is_enabled() Signed-off-by: Oleksii Kurochko --- Changes in V4: - Nothing changed. Only rebase --- Changes in V3: - update the commit message that MMU is also enabled here - remove

[PATCH v9 1/5] xen: introduce CONFIG_GENERIC_BUG_FRAME

of do_bug_frame * new config CONFIG_GENERIC_BUG_FRAME Signed-off-by: Oleksii Kurochko --- Changes in V9: * rename BUILD_BUG_ON_LINE_WIDTH to BUG_CHECK_LINE_WIDTH * Remove from as the patch were merged to staging which move all things used in from to more proper headers. * add

[PATCH v9 5/5] xen/x86: switch x86 to use generic implemetation of bug.h

void *' Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich --- Changes in V9: * update the commit message * add additional explanation to header --- Changes in V8: * move from to to fix compilation issue. The following compilation issue occurs: In file included from ./arch

[PATCH v9 3/5] xen: change to

e used in <*/cpufreq.c> In the following two patches x86 and ARM archictectures will be switched fully: [1] xen/arm: switch ARM to use generic implementation of bug.h [2] xen/x86: switch x86 to use generic implemetation of bug.h Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich

[PATCH v9 4/5] xen/arm: switch ARM to use generic implementation of bug.h

implementation of bug.h macros to generic one Signed-off-by: Oleksii Kurochko --- Changes in V9: * add additional explanation to header --- Changes in V8: * Nothing changed. --- Changes in V7: * Rebase the patch. --- Changes in V6: * Update the "changes in v5" * Rebase on top of the patch [xen:

[PATCH v9 2/5] xen/arm: remove unused defines in

The following defines BUG_DISP_WIDTH, BUG_LINE_LO_WIDTH, BUG_LINE_HI_WIDTH aren't used in ARM so could be purged as unused. Requested-by: Jan Beulich Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich --- Changes in V9: * Nothing changed --- Changes in V8: * Update the commit message

[PATCH v9 0/5] introduce generic implementation of macros from bug.h

. * Rework do_invalid_op() in x86 ( re-use handle_bug_frame() and find_bug_frame() ) --- Oleksii Kurochko (5): xen: introduce CONFIG_GENERIC_BUG_FRAME xen/arm: remove unused defines in xen: change to xen/arm: switch ARM to use generic implementation of bug.h xen/x86: switch x86 to use

[PATCH v3 1/3] xen/riscv: introduce setup_initial_pages

ons for specific section ( such as .text, .rodata, etc ) otherwise RW permission will be set by default. Origin: g...@github.com:xvisor/xvisor.git 9be2fdd7 Signed-off-by: Oleksii Kurochko --- Changes in V3: - update definition of pte_t structure to have a proper size of pte_t in case of RV32. -

[PATCH v3 2/3] xen/riscv: setup initial pagetables

The patch does two thing: 1. Setup initial pagetables. 2. Enable MMU which end up with code in cont_after_mmu_is_enabled() Signed-off-by: Oleksii Kurochko --- Changes in V3: - update the commit message that MMU is also enabled here - remove early_printk("All set up\n") as it

[PATCH v3 0/3] enable MMU for RISC-V

pproach for RISC-V smoke test by Andrew Cooper * Add patch [[xen/riscv: remove dummy_bss variable] as there is no any sense in dummy_bss variable after introduction of inittial page tables. --- Oleksii Kurochko (3): xen/riscv: introduce setup_initial_pages xen/riscv: setup initial paget

[PATCH v3 3/3] xen/riscv: remove dummy_bss variable

After introduction of initial pagetables there is no any sense in dummy_bss variable as bss section will not be empty anymore. Signed-off-by: Oleksii Kurochko --- Changes in V3: * patch was introduced in the current one patch series (v3). --- Changes in V2: * patch was introduced

[PATCH v2 2/3] xen/riscv: setup initial pagetables

Signed-off-by: Oleksii Kurochko --- Changes in V2: * Update the commit message --- xen/arch/riscv/setup.c | 5 + 1 file changed, 5 insertions(+) diff --git a/xen/arch/riscv/setup.c b/xen/arch/riscv/setup.c index b56c69a3dc..a3481973ff 100644 --- a/xen/arch/riscv/setup.c +++ b/xen/arch

[PATCH v2 3/3] xen/riscv: remove dummy_bss variable

After introduction of initial pagetables there is no any sense in dummy_bss variable as bss section will not be empty anymore. Signed-off-by: Oleksii Kurochko --- Changes in V2: * patch was introduced in the current one patch series (v2). --- xen/arch/riscv/setup.c | 8 1 file changed

[PATCH v2 1/3] xen/riscv: introduce setup_initial_pages

ial_pagetables() as there is no such section in xen.lds.S * Update the argument of pte_is_valid() to "const pte_t *p" Origin: https://gitlab.com/xen-on-risc-v/xen/-/tree/riscv-rebase 4af165b468af Signed-off-by: Oleksii Kurochko --- Changes in V2: * update the commit message: * Remove {ZEROETH,FIRS

[PATCH v2 0/3] enable MMU for RISC-V

e_t *p" * Remove patch "[PATCH v1 3/3] automation: update RISC-V smoke test" from the patch series as it was introduced simplified approach for RISC-V smoke test by Andrew Cooper * Add patch [[xen/riscv: remove dummy_bss variable] as there is no any sense in dummy_b

[PATCH v5 7/7] xen/riscv: test basic handling stuff

Signed-off-by: Oleksii Kurochko Acked-by: Alistair Francis --- Changes in V5: - Nothing changed --- Changes in V4: - Add Acked-by: Alistair Francis --- Changes in V3: - Nothing changed --- Changes in V2: - Nothing changed --- xen/arch/riscv/setup.c | 17 + 1 file

[PATCH v5 6/7] xen/riscv: introduce an implementation of macros from

nformation. Signed-off-by: Oleksii Kurochko --- Changes in V5: - Remove "#include " from as there is no any need in it anymore - Update macros GET_INSN_LENGTH: remove UL and 'unsigned int len;' from it - Remove " include " from risc/setup.c. it is not needed in the cu

[PATCH v5 0/7] RISCV basic exception handling implementation

r_t type from it. - Refactor decode_trap_cause() function to be more optimization-friendly. - Add two new empty headers: and as they are needed to include which provides ARRAY_SIZE and other macros. - Code style fixes. --- Oleksii Kurochko (7): xen/riscv: introduce boot informa

[PATCH v5 5/7] xen/riscv: introduce trap_init()

Signed-off-by: Oleksii Kurochko Reviewed-by: Alistair Francis --- Changes in V5: - Nothing changed --- Changes in V4: - Nothing changed --- Changes in V3: - Nothing changed --- Changes in V2: - Rename setup_trap_handler() to trap_init(). - Add Reviewed-by to the commit message

[PATCH v5 4/7] xen/riscv: introduce decode_cause() stuff

The patch introduces stuff needed to decode a reason of an exception. Signed-off-by: Oleksii Kurochko --- Changes in V5: - Remove from riscv/traps/c as nothing would require inclusion. - decode_reserved_interrupt_cause(), decode_interrupt_cause(), decode_cause, do_unexpected_trap

[PATCH v5 3/7] xen/riscv: introduce dummy

will be used in the patch "xen/riscv: introduce decode_cause() stuff" and requires Signed-off-by: Oleksii Kurochko --- Changes in V5: * the patch was introduced in the current patch series (V5) --- xen/arch/riscv/include/asm/bug.h | 10 ++ 1 file changed, 10 insertions(

[PATCH v5 2/7] xen/riscv: initialize boot_info structure

Signed-off-by: Oleksii Kurochko --- Changes in V5: * the patch was introduced in the current patch series (V5) --- xen/arch/riscv/setup.c | 12 1 file changed, 12 insertions(+) diff --git a/xen/arch/riscv/setup.c b/xen/arch/riscv/setup.c index 0908bdb9f9..36556eb779 100644

[PATCH v5 1/7] xen/riscv: introduce boot information structure

The structure holds information about: 1. linker start/end address 2. load start/end address Also the patch introduces offsets for boot information structure members to access them in assembly code. Signed-off-by: Oleksii Kurochko --- Changes in V5: * the patch was introduced in the current

[PATCH v2 0/2] deal with GOT stuff for RISC-V

[xen/riscv: add EMBEDDED_EXTRA_CFLAGS to CFLAGS]. * In addition to the patch [1] was created another patch [xen/riscv: add explicit check that .got{.plt} is empty] to be sure that .got{.plt} sections weren't produced. --- Oleksii Kurochko (2): xen/riscv: add EMBEDDED_EXTRA_CFLAGS to CFLAGS

[PATCH v2 2/2] xen/riscv: add explicit check that .got{.plt} is empty

early failure. Signed-off-by: Oleksii Kurochko --- Changes in V2: * the patch was introduced in patch series v2. --- xen/arch/riscv/xen.lds.S | 13 + 1 file changed, 13 insertions(+) diff --git a/xen/arch/riscv/xen.lds.S b/xen/arch/riscv/xen.lds.S index ca57cce75c..f299ea8422 100644

[PATCH v2 1/2] xen/riscv: add EMBEDDED_EXTRA_CFLAGS to CFLAGS

used. Signed-off-by: Oleksii Kurochko --- Changes in V2: * instead of changing 'la' to 'lla' to keep cpu0_boot_stack PC-relative it was updated CFLAGS with EMBEDDED_EXTRA_CFLAGS which contains -fno-PIE thereby 'la' will be transformed to 'auipc/addi' without GOT usage. * update

[PATCH v8 5/5] xen/x86: switch x86 to use generic implemetation of bug.h

void *' * add '#include ' Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich --- Changes in V8: * move from to to fix compilation issue. The following compilation issue occurs: In file included from ./arch/x86/include/asm/smp.h:10, from ./include/xen/smp.h:4

[PATCH v8 4/5] xen/arm: switch ARM to use generic implementation of bug.h

implementation of bug.h macros to generic one Signed-off-by: Oleksii Kurochko --- Changes in V8: * Nothing changed. --- Changes in V7: * Rebase the patch. --- Changes in V6: * Update the "changes in v5" * Rebase on top of the patch [xen: introduce CONFIG_GENERIC_BUG_FRAME] as there were min

[PATCH v8 3/5] xen: change to

e used in <*/cpufreq.c> In the following two patches x86 and ARM archictectures will be switched fully: [1] xen/arm: switch ARM to use generic implementation of bug.h [2] xen/x86: switch x86 to use generic implemetation of bug.h Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich

[PATCH v8 1/5] xen: introduce CONFIG_GENERIC_BUG_FRAME

of do_bug_frame * new config CONFIG_GENERIC_BUG_FRAME Signed-off-by: Oleksii Kurochko --- Changes in V8: * move BUILD_BUG_ON_LINE_WIDTH(line) to "ifndef BUG_FRAME_STRUCT" and add #elif for "ifndef BUG_FRAME_STRUCT" to define stub for BUILD_BUG_ON_LINE_WIDTH. * mo

[PATCH v8 0/5] introduce generic implementation of macros from bug.h

related to bug frame structure more generic. * Rename bug_file() in ARM implementation to bug_ptr() as generic do_bug_frame() uses bug_ptr(). * Introduce BUG_INSTR and MODIFIER to make _ASM_BUGFRAME_TEXT reusable between x86 and RISC-V. * Rework do_invalid_op() in x86 ( re-use handle_bug_fr

[PATCH v8 2/5] xen/arm: remove unused defines in

The following defines BUG_DISP_WIDTH, BUG_LINE_LO_WIDTH, BUG_LINE_HI_WIDTH aren't used in ARM so could be purged as unused. Requested-by: Jan Beulich Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich --- Changes in V8: * Update the commit message with Requested-by and Reviewed

[PATCH v1] xen/riscv: make calculation of stack address PC-relative

of _GLOBAL_OFFSET_TABLE_ where all addresses will be without counting that it might happen that linker address != load address. To be sure that SP is loaded always PC-relative address 'la' should be changed to 'lla', which always transforms to 'auipc/addi'. Signed-off-by: Oleksii Kurochko --- xen/arch

[PATCH v7 1/5] xen: introduce CONFIG_GENERIC_BUG_FRAME

of do_bug_frame * new config CONFIG_GENERIC_BUG_FRAME Signed-off-by: Oleksii Kurochko --- Changes in V7: * fix code style. * Remove '#include ' from bug.c. it should be a part of . * move BUILD_BUG_ON_LINE_WIDTH to '#ifndef BUG_FRAME_STRUCT' and define dummy BUILD_BUG_ON_LINE_WIDTH when

[PATCH v7 3/5] xen: change to

6 and ARM archictectures will be switched fully: [1] xen/arm: switch ARM to use generic implementation of bug.h [2] xen/x86: switch x86 to use generic implemetation of bug.h Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich --- Changes in V7: * Remove #undef {BUG_DISP_WIDTH, BUG_LINE_LO_WIDTH, BUG_LI

[PATCH v7 4/5] xen/arm: switch ARM to use generic implementation of bug.h

implementation of bug.h macros to generic one Signed-off-by: Oleksii Kurochko --- Changes in V7: * Rebase the patch. --- Changes in V6: * Update the "changes in v5" * Rebase on top of the patch [xen: introduce CONFIG_GENERIC_BUG_FRAME] as there were minor changes. --- Changes in V5: * co

[PATCH v7 5/5] xen/x86: switch x86 to use generic implemetation of bug.h

void *' * add '#include ' Signed-off-by: Oleksii Kurochko Reviewed-by: Jan Beulich --- Changes in V7: * update the commit message * make eip 'const void *' * change [eip = (unsigned char *)eip + sizeof(bug_insn);] to [eip += sizeof(bug_insn);] * add '#include ' to * add Reviewed-by: Jan

[PATCH v7 0/5] introduce generic implementation of macros from bug.h

C-V. * Rework do_invalid_op() in x86 ( re-use handle_bug_frame() and find_bug_frame() ) --- Oleksii Kurochko (5): xen: introduce CONFIG_GENERIC_BUG_FRAME xen/arm: remove unused defines in xen: change to xen/arm: switch ARM to use generic implementation of bug.h xen/x86: switch x86 to us

[PATCH v7 2/5] xen/arm: remove unused defines in

The following defines BUG_DISP_WIDTH, BUG_LINE_LO_WIDTH, BUG_LINE_HI_WIDTH aren't used in ARM so could be purged as unused. Signed-off-by: Oleksii Kurochko --- xen/arch/arm/include/asm/bug.h | 4 1 file changed, 4 deletions(-) diff --git a/xen/arch/arm/include/asm/bug.h b/xen/arch/arm

[PATCH v6 4/4] xen/x86: switch x86 to use generic implemetation of bug.h

*' Signed-off-by: Oleksii Kurochko --- Changes in V6: * update the commit message * update the type of eip to 'void *' in do_invalid_op() * fix the logic of do_invalid_op() * move macros BUG_DEBUGGER_TRAP_FATAL under #ifndef __ASSEMBLY__ as it is not necessary to be in assembly code

[PATCH v6 1/4] xen: introduce CONFIG_GENERIC_BUG_FRAME

of do_bug_frame * new config CONFIG_GENERIC_BUG_FRAME Signed-off-by: Oleksii Kurochko --- Changes in V6: * fix code style. * change -EINVAL to -ENOENT in case when bug_frame wasn't found in generic do_bug_frame() * change all 'return id' to 'break' inside switch/case of generic do_bug_frame

[PATCH v6 3/4] xen/arm: switch ARM to use generic implementation of bug.h

implementation of bug.h macros to generic one Signed-off-by: Oleksii Kurochko --- Changes in V6: * Update the "changes in v5" * Rebase on top of the patch [xen: introduce CONFIG_GENERIC_BUG_FRAME] as there were minor changes. --- Changes in V5: * common/bug.c changes were removed af

[PATCH v6 2/4] xen: change to

neric implemetation of bug.h Signed-off-by: Oleksii Kurochko --- Changes in V6: - change the inclusion order of . - add #undef of BUG_DISP_WIDTH, BUG_LINE_LO_WIDTH for ARM & x86 as they were introduced unconditionally in . - update the commit message --- C

[PATCH v6 0/4] [PATCH v5 0/4] introduce generic implementation of macros from bug.h

G_INSTR and MODIFIER to make _ASM_BUGFRAME_TEXT reusable between x86 and RISC-V. * Rework do_invalid_op() in x86 ( re-use handle_bug_frame() and find_bug_frame() ) --- Oleksii Kurochko (4): xen: introduce CONFIG_GENERIC_BUG_FRAME xen: change to xen/arm: switch ARM to use generic imple

[PATCH v5 3/4] xen/arm: switch ARM to use generic implementation of bug.h

implementation of bug.h macros to generic one Signed-off-by: Oleksii Kurochko --- Changes in V5: * Nothing changed --- Changes in V4: * Switch ARM implementation to generic one * Remove BUG_FN_REG from arm{16,32}/bug.h as it isn't needed after switch to generic implementation * Update commit message

[PATCH v5 1/4] xen: introduce CONFIG_GENERIC_BUG_FRAME

of do_bug_frame * new config CONFIG_GENERIC_BUG_FRAME Signed-off-by: Oleksii Kurochko --- Changes in V5: * Remove "#ifdef BUG_FN_REG..." from generic do_bug_frame() as ARM will use generic implementation fully. --- Changes in V4: * common/bug.c: - Use BUG_DEBUGGER_

[PATCH v5 4/4] xen/x86: switch x86 to use generic implemetation of bug.h

-by: Oleksii Kurochko --- Changes in V5: * Nothing changed --- Changes in V4: * Back comment /* !__ASSEMBLY__ */ for #else case in * Remove changes related to x86/.../asm/debuger.h as do_bug_frame() prototype was updated and cpu_user_regs isn't const any more. --- Changes in V3: * As prototype

[PATCH v5 2/4] xen: change to

redundant redeclaration of ... In the following two patches x86 and ARM archictectures will be switched fully: * xen/arm: switch ARM to use generic implementation of bug.h * xen/x86: switch x86 to use generic implemetation of bug.h Signed-off-by: Oleksii Kurochko --- Changes in V5: - Nothing c

[PATCH v5 0/4] introduce generic implementation of macros from bug.h

tructure more generic. * Rename bug_file() in ARM implementation to bug_ptr() as generic do_bug_frame() uses bug_ptr(). * Introduce BUG_INSTR and MODIFIER to make _ASM_BUGFRAME_TEXT reusable between x86 and RISC-V. * Rework do_invalid_op() in x86 ( re-use handle_bug_frame() and find_bug_f

[PATCH v3 3/3] xen/riscv: initialize .bss section

Signed-off-by: Oleksii Kurochko --- xen/arch/riscv/riscv64/head.S | 9 + xen/arch/riscv/setup.c| 8 2 files changed, 17 insertions(+) diff --git a/xen/arch/riscv/riscv64/head.S b/xen/arch/riscv/riscv64/head.S index adf5d6c74a..8887f0cbd4 100644 --- a/xen/arch/riscv

[PATCH v3 2/3] xen/riscv: read/save hart_id and dtb_base passed by bootloader

Signed-off-by: Oleksii Kurochko --- Changes since v2: * Add the comment for start() function with the explanation what and how OpenSBI pass to start() function. * Clean up start() code related to read hart_id & dtb_base. --- Changes since v1: * read/save/pass of hart_id and dtb_

[PATCH v3 0/3] Do basic initialization things

dtb_base --- Oleksii Kurochko (3): xen/riscv: disable fpu xen/riscv: read/save hart_id and dtb_base passed by bootloader xen/riscv: initialize .bss section xen/arch/riscv/riscv64/head.S | 21 + xen/arch/riscv/setup.c| 11 ++- 2 files changed, 31 insertions(+), 1

[PATCH v3 1/3] xen/riscv: disable fpu

Disable FPU to detect illegal usage of floating point in kernel space. Signed-off-by: Oleksii Kurochko --- xen/arch/riscv/riscv64/head.S | 7 +++ 1 file changed, 7 insertions(+) diff --git a/xen/arch/riscv/riscv64/head.S b/xen/arch/riscv/riscv64/head.S index ffd95f9f89..52fa41c778 100644

[PATCH v2 0/3] Do basic initialization things

and dtb_base passed by a bootloader were moved to head.S. Also, it was updated start_xen() arguments to recieve hard_id & dtb_base --- Oleksii Kurochko (3): xen/riscv: read/save hart_id and dtb_base passed by bootloader xen/riscv: initialize .bss section xen/riscv: disable fpu xen/arch/r

[PATCH v2 1/3] xen/riscv: read/save hart_id and dtb_base passed by bootloader

Signed-off-by: Oleksii Kurochko --- Changes since v1: * read/save/pass of hart_id and dtb_base passed by a bootloader were moved to head.S. * Update start_xen() to recieve hard_id & dtb_base --- xen/arch/riscv/riscv64/head.S | 24 xen/arch/riscv/set

[PATCH v2 3/3] xen/riscv: disable fpu

Disable FPU to detect illegal usage of floating point in kernel space. Signed-off-by: Oleksii Kurochko --- Changes since v1: * Rebase on top of two previous patches. --- xen/arch/riscv/setup.c | 8 1 file changed, 8 insertions(+) diff --git a/xen/arch/riscv/setup.c b/xen/arch/riscv

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