[PATCH] Hurd port: update interface to match upstream and fix warnings.

We have recently updated the interface for raising exceptions to use long [1] and updated mach_port_t to be "unsigned int". This patches fixes those problems and will help us port GDB to Hurd x86_64. Tested on Hurd i686 and x86_64. [1] https://git.savannah.gnu.org/cgit/hurd/gnumach.git/tree/incl

[PATCH v3 4/4 gnumach] smp: Fix INIT/STARTUP IPI sequence

TODO: Don't hardcode 0x3000 as the starting eip. TESTED: works in qemu TESTED: works hardware with AMD cpu --- i386/i386/mp_desc.c | 15 +++-- i386/i386/smp.c | 125 +--- i386/i386/smp.h | 5 +- i386/i386at/cram.h | 5 ++ i386/i386

[PATCH v3 2/4 gnumach] Add HPET timer for small accurate delays

TESTED: This works in qemu correctly TESTED: This works on an AMD board with ACPI v2.0 correctly --- i386/i386/apic.c | 89 +++ i386/i386/apic.h | 5 ++ i386/i386at/acpi_parse_apic.c | 35 ++ i386/i386at/acpi_parse_apic.h | 23

[PATCH v3 3/4 gnumach] smp: Use HPET instead of pit one-shot that is unreliable

NB: Every x86 board that uses ACPI most likely has a HPET since 2005. We can roll back to PIT in the cases where its not present, but the PIT one shot code is definitely currently broken. --- i386/i386/smp.c | 7 +++ 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/i386/i386/smp.c

[PATCH v3 1/4 gnumach] separate lapic_enable from lapic_setup

This initializes the lapic without turning on the IOAPIC interrupts during SMP init. --- i386/i386/apic.c | 15 +-- i386/i386/apic.h | 2 ++ i386/i386/mp_desc.c | 18 +++--- i386/i386at/ioapic.c | 1 + 4 files changed, 31 insertions(+), 5 deletions(-) diff --gi

[PATCH v3 0/4 gnumach] SMP on AMD

Hi, I addressed all the points in review 2. Here is version 3. It still boots! Thanks, Damien

Re: [PATCH v2 4/4 gnumach] smp: Fix INIT/STARTUP IPI sequence

Damien Zammit, le mar. 06 févr. 2024 03:06:28 +, a ecrit: > +printf("Sending IPIs to APIC ID %u...\n", apic_id); > +err = smp_send_ipi_init(apic_id); > +hpet_mdelay(10); > +err = smp_send_ipi_startup(apic_id, start_eip / PAGE_SIZE); > +hpet_udelay(200); > +err = smp_send

Re: [PATCH v2 2/4 gnumach] Add HPET timer for small accurate delays

Damien Zammit, le mar. 06 févr. 2024 03:06:20 +, a ecrit: > +us = (us * NSEC_PER_USEC) / hpet_period_nsec; > + > +start = HPET32(HPET_COUNTER); > + > +while (1) { > +now = HPET32(HPET_COUNTER); > + > +if (now < start) { > +/* handle timer overflow within

Re: [PATCH v2 1/4 gnumach] separate lapic_enable from lapic_setup

Damien Zammit, le mar. 06 févr. 2024 03:06:17 +, a ecrit: > splhigh(); > > + /* Disable IOAPIC interrupts (IPIs not affected). > + * Clearing this flag is similar to masking all > + * IOAPIC interrupts individually */ This is not saying _why_ we do this. Why IOAPIC would