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| author | Etienne Brateau <etienne.brateau@gmail.com> | 2022-09-24 18:31:45 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2022-09-26 00:15:38 +0200 |
| commit | e45542fbd6cbc0a815b0808f16cf4a8e87410f64 (patch) | |
| tree | 0ecf79ee4a7fd4e1a6c03bed46f4034aaed7314d /i386 | |
| parent | 44f67d31ec1e178388dd85e549b9761050713d4b (diff) | |
| download | gnumach-e45542fbd6cbc0a815b0808f16cf4a8e87410f64.tar.gz gnumach-e45542fbd6cbc0a815b0808f16cf4a8e87410f64.tar.bz2 gnumach-e45542fbd6cbc0a815b0808f16cf4a8e87410f64.zip | |
Fix when enabling APIC without SMP
When we want to enable APIC, we must initialize the structure or
otherwise, it will try to access to a not initialized memory addresses.
Message-Id: <20220924163145.39894-1-etienne.brateau@gmail.com>
Diffstat (limited to 'i386')
| -rw-r--r-- | i386/i386/smp.c | 10 | ||||
| -rw-r--r-- | i386/i386at/model_dep.c | 10 |
2 files changed, 10 insertions, 10 deletions
diff --git a/i386/i386/smp.c b/i386/i386/smp.c index f64fb7f7..d7523a73 100644 --- a/i386/i386/smp.c +++ b/i386/i386/smp.c @@ -20,7 +20,6 @@ #include <i386/i386/apic.h> #include <i386/i386/smp.h> -#include <i386/i386at/acpi_parse_apic.h> #include <kern/smp.h> @@ -42,12 +41,7 @@ static void smp_data_init(void) */ int smp_init(void) { - int apic_success; + smp_data_init(); - apic_success = acpi_apic_init(); - if (apic_success == ACPI_SUCCESS) { - smp_data_init(); - } - - return apic_success; + return 0; } diff --git a/i386/i386at/model_dep.c b/i386/i386at/model_dep.c index 105aedb2..1819526b 100644 --- a/i386/i386at/model_dep.c +++ b/i386/i386at/model_dep.c @@ -66,6 +66,7 @@ #include <i386/locore.h> #include <i386/model_dep.h> #include <i386/smp.h> +#include <i386at/acpi_parse_apic.h> #include <i386at/autoconf.h> #include <i386at/biosmem.h> #include <i386at/elf.h> @@ -170,10 +171,14 @@ void machine_init(void) hyp_init(); #else /* MACH_HYP */ -#if (NCPUS > 1) && defined(APIC) - smp_init(); +#if defined(APIC) + if (acpi_apic_init() != ACPI_SUCCESS) { + panic("APIC not found, unable to boot"); + } ioapic_configure(); lapic_enable_timer(); +#if (NCPUS > 1) + smp_init(); #warning FIXME: Rather unmask them from their respective drivers /* kd */ @@ -183,6 +188,7 @@ void machine_init(void) /* com1 */ unmask_irq(3); #endif /* NCPUS > 1 */ +#endif /* APIC */ #ifdef LINUX_DEV /* |