search for: early_printk

The current early-printk support for ARM is rather hard-coded, making it hard to add machines or tweak settings. This series slightly moves some code to gather UART settings in xen/arch/arm/Rules.mk instead of the actual .c files. Also it allows two different machines with different settings to share the same driver, which the last patch exploits to add support the Calxeda Midway hardware. This

...pt_dtuart; > + const char *devpath = opt_dtuart; > char *options; > > if ( !console_has("dtuart") || !strcmp(opt_dtuart, "") ) > @@ -53,12 +54,15 @@ void __init dt_uart_init(void) > else > options = ""; > > - early_printk("Looking for UART console %s\n", devalias); > - dev = dt_find_node_by_alias(devalias); > + early_printk("Looking for UART console %s\n", devpath); > + if ( *devpath == ''/'' ) > + dev = dt_find_node_by_path(devpath); > + else &gt...

...ges; unsigned long dtb_pages; unsigned long boot_mfn_start, boot_mfn_end; + int i = 0; - /* - * TODO: only using the first RAM bank for now. The heaps and the - * frame table assume RAM is physically contiguous. - */ - if ( early_info.mem.nr_banks > 1 ) - early_printk("WARNING: Only using first bank of memory\n"); + /* TODO: Handle non-contiguous memory bank */ + if ( !early_info.mem.nr_banks ) + early_panic("No memory bank\n"); ram_start = early_info.mem.bank[0].start; ram_size = early_info.mem.bank[0].size; ram_...

...m, brcm. Signed-off-by: Jon Fraser <jfraser@broadcom.com> --- xen/arch/arm/Rules.mk | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/xen/arch/arm/Rules.mk b/xen/arch/arm/Rules.mk index bd79b26..c27c2eb 100644 --- a/xen/arch/arm/Rules.mk +++ b/xen/arch/arm/Rules.mk @@ -77,6 +77,11 @@ EARLY_PRINTK_INC := 8250 EARLY_UART_BASE_ADDRESS := 0x01c28000 EARLY_UART_REG_SHIFT := 2 endif +ifeq ($(CONFIG_EARLY_PRINTK), brcm) +EARLY_PRINTK_INC := 8250 +EARLY_UART_BASE_ADDRESS := 0xF0406B00 +EARLY_UART_REG_SHIFT := 2 +endif ifneq ($(EARLY_PRINTK_INC),) EARLY_PRINTK := y -- 1.7.11.3

...some typos. - [3/5] Remove unnecessary define. - [4/5] Remove the macros that would be used in future. - [5/5] Use dt_property_read_u32() helper to get clock-frequency. Chen Baozi (6): xen: rename ns16550-uart.h to 8250-uart.h and fix some typos xen/arm: add 8250 compatible UART support for early_printk xen: Introduce a helper to read a u32 property in device tree. xen/arm: Add the new OMAP UART driver. xen/arm: Add support for device tree specified arch_timer clock frequency. xen/arm: Platform recognition and initialize arch_timer for the OMAP5 config/arm32.mk...

I had a quick try to make it work, but no success thus far. Should it be enough to apply the patch and then boot with "console=/dev/hvc0"? Also, why do you comment out the EARLY_PRINTK stuff in Kconfig? J

I had a quick try to make it work, but no success thus far. Should it be enough to apply the patch and then boot with "console=/dev/hvc0"? Also, why do you comment out the EARLY_PRINTK stuff in Kconfig? J

Hi, I want to try Xen on ARMv8 Simulator. Can you please provide guidance?. I am looking for information about sources, build and procedure to launch Xen on ARMv8 Thanks & Regards Vijay

...ate(boot_ghcb); + result = vc_init_em_ctxt(&ctxt, regs, exit_code); + + if (result == ES_OK) + result = vc_handle_exitcode(&ctxt, boot_ghcb, exit_code); + + /* Done - now check the result */ + switch (result) { + case ES_OK: + vc_finish_insn(&ctxt); + break; + case ES_UNSUPPORTED: + early_printk("PANIC: Unsupported exit-code 0x%02lx in early #VC exception (IP: 0x%lx)\n", + exit_code, regs->ip); + goto fail; + case ES_VMM_ERROR: + early_printk("PANIC: Failure in communication with VMM (exit-code 0x%02lx IP: 0x%lx)\n", + exit_code, regs->ip); + goto fail; +...

...lit into earlier patch). Only build on ARM64. Drop empty init and reset hooks and enable 1:1 workaround. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> --- v2: Drop empty hooks, merge the 1:1 workaround patch, drop early_printk.h --- xen/arch/arm/platforms/Makefile | 1 + xen/arch/arm/platforms/xgene-storm.c | 52 ++++++++++++++++++++++++++++++++++ 2 files changed, 53 insertions(+) create mode 100644 xen/arch/arm/platforms/xgene-storm.c diff --git a/xen/arch/arm/platforms/Makefile b/xen/arch/arm/platforms/Mak...

..._ghcb(struct pt_regs *regs); #endif diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 3bcdd8d2bbdd..04ceea8f4a89 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -20,6 +20,7 @@ CFLAGS_REMOVE_kvmclock.o = -pg CFLAGS_REMOVE_ftrace.o = -pg CFLAGS_REMOVE_early_printk.o = -pg CFLAGS_REMOVE_head64.o = -pg +CFLAGS_REMOVE_sev-es.o = -pg endif KASAN_SANITIZE_head$(BITS).o := n @@ -27,6 +28,7 @@ KASAN_SANITIZE_dumpstack.o := n KASAN_SANITIZE_dumpstack_$(BITS).o := n KASAN_SANITIZE_stacktrace.o := n KASAN_SANITIZE_paravirt.o := n +KASAN_SANITIZE_...

...e/asm-x86/msr.h - adds new VMX and SMX MSR flags xen/include/asm-x86/processor.h - adds new CR4 SMX flag xen/include/public/hvm/e820.h - add E820_PROTECTED mem type xen/arch/x86/smx/Makefile - self explanatory xen/arch/x86/smx/acmod.c - LT Authenticated Code (AC) module support fns xen/arch/x86/smx/early_printk.c - serial printk() for early in boot process xen/arch/x86/smx/errors.c - error parsing/display fns xen/arch/x86/smx/mtrrs.c - MTRR handling for AC module launch xen/arch/x86/smx/smx.c - main LT/SMX fns and entry points xen/arch/x86/smx/tpm.c - basic TPM support fns xen/include/asm-x86/smx/* - head...

I''m afraid this series is rather a grab bag and it is distressingly large at this stage. With this series I can boot an Xgene board until it fails to find its SATA controller. This is a dom0 issue for which patches are pending from APM (/me nudges Anup). As well as the APM specific platform stuff there are also some generic improvements which were either necessary or useful during this

Hi, Here is a patch (on top of the paravirt patch queue) which makes xen guests use the hvc_console.c infrastructure for the console, thereby greatly reducing the amount console code. xvc0 is gone too, hvc0 is used instead. cheers, Gerd -- Gerd Hoffmann <kraxel@suse.de>

Hi, Here is a patch (on top of the paravirt patch queue) which makes xen guests use the hvc_console.c infrastructure for the console, thereby greatly reducing the amount console code. xvc0 is gone too, hvc0 is used instead. cheers, Gerd -- Gerd Hoffmann <kraxel@suse.de>

Hi, Here is a patch (on top of the paravirt patch queue) which makes xen guests use the hvc_console.c infrastructure for the console, thereby greatly reducing the amount console code. xvc0 is gone too, hvc0 is used instead. cheers, Gerd -- Gerd Hoffmann <kraxel@suse.de>

George has release acked all of these. Otherwise mostly minor updates this time around. Summary: A == acked, M == modified A xen: arm64: Add 8250 earlyprintk support A xen: arm64: Add Basic Platform support for APM X-Gene Storm. A xen: arm64: Add APM implementor id to processor implementers. M xen: arm: add a quirk to handle platforms with unusual GIC layout A xen: arm: allow platform

...-208,10 +223,11 @@ ENTRY(early_idt_handler) cmpl $2,early_recursion_flag(%rip) jz 1f incl early_recursion_flag(%rip) - xorl %eax,%eax movq 8(%rsp),%rsi # get rip movq (%rsp),%rdx - movq %cr2,%rcx + GET_CR2_INTO_RAX + movq %rax,%rcx + xorq %rax, %rax leaq early_idt_msg(%rip),%rdi call early_printk cmpl $2,early_recursion_flag(%rip) @@ -232,6 +248,47 @@ early_idt_msg: early_idt_ripmsg: .asciz "RIP %s\n" +#ifdef CONFIG_PARAVIRT +ENTRY(startup_paravirt) + cld + + /* initial stack location */ + movq $(init_thread_union+THREAD_SIZE),%rsp + + /* We take pains to preserve all the...

...-208,10 +223,11 @@ ENTRY(early_idt_handler) cmpl $2,early_recursion_flag(%rip) jz 1f incl early_recursion_flag(%rip) - xorl %eax,%eax movq 8(%rsp),%rsi # get rip movq (%rsp),%rdx - movq %cr2,%rcx + GET_CR2_INTO_RAX + movq %rax,%rcx + xorq %rax, %rax leaq early_idt_msg(%rip),%rdi call early_printk cmpl $2,early_recursion_flag(%rip) @@ -232,6 +248,47 @@ early_idt_msg: early_idt_ripmsg: .asciz "RIP %s\n" +#ifdef CONFIG_PARAVIRT +ENTRY(startup_paravirt) + cld + + /* initial stack location */ + movq $(init_thread_union+THREAD_SIZE),%rsp + + /* We take pains to preserve all the...

...e/asm-x86/msr.h - adds new VMX and SMX MSR flags xen/include/asm-x86/processor.h - adds new CR4 SMX flag xen/include/public/hvm/e820.h - add E820_PROTECTED mem type xen/arch/x86/smx/Makefile - self explanatory xen/arch/x86/smx/acmod.c - LT Authenticated Code (AC) module support fns xen/arch/x86/smx/early_printk.c - serial printk() for early in boot process xen/arch/x86/smx/errors.c - error parsing/display fns xen/arch/x86/smx/mtrrs.c - MTRR handling for AC module launch xen/arch/x86/smx/smx.c - main LT/SMX fns and entry points xen/arch/x86/smx/tpm.c - basic TPM support fns xen/include/asm-x86/smx/* - head...